Home / 80,547.32-111,147.18-47,032.76

Finding the Fourth Proportional to 80,547.32, 111,147.18 and 47,032.76

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Solution

The fourth proportional to 80,547.32, 111,147.18 and 47,032.76 is: 64,900.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,547.32 : 111,147.18 = 47,032.76 : x
  2. Step 2: Convert to fraction form
    80,547.32/111,147.18 = 47,032.76/x
  3. Step 3: Cross multiply
    80,547.32x = 111,147.18 × 47,032.76
  4. Step 4: Simplify right side
    80,547.32x = 5,227,558,641.62
  5. Step 5: Solve for x
    x = 5,227,558,641.62/80,547.32
  6. Step 6: Final answer
    x = 64,900.47

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.