Home / 80,547.05-111,110.13-74,845.13

Finding the Fourth Proportional to 80,547.05, 111,110.13 and 74,845.13

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Solution

The fourth proportional to 80,547.05, 111,110.13 and 74,845.13 is: 103,244.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,547.05 : 111,110.13 = 74,845.13 : x
  2. Step 2: Convert to fraction form
    80,547.05/111,110.13 = 74,845.13/x
  3. Step 3: Cross multiply
    80,547.05x = 111,110.13 × 74,845.13
  4. Step 4: Simplify right side
    80,547.05x = 8,316,052,124.17
  5. Step 5: Solve for x
    x = 8,316,052,124.17/80,547.05
  6. Step 6: Final answer
    x = 103,244.65

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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.