Home / 80,973.61-111,743.75-45,162.70

Finding the Fourth Proportional to 80,973.61, 111,743.75 and 45,162.70

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Solution

The fourth proportional to 80,973.61, 111,743.75 and 45,162.70 is: 62,324.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,973.61 : 111,743.75 = 45,162.70 : x
  2. Step 2: Convert to fraction form
    80,973.61/111,743.75 = 45,162.70/x
  3. Step 3: Cross multiply
    80,973.61x = 111,743.75 × 45,162.70
  4. Step 4: Simplify right side
    80,973.61x = 5,046,649,458.13
  5. Step 5: Solve for x
    x = 5,046,649,458.13/80,973.61
  6. Step 6: Final answer
    x = 62,324.62

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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.