Home / 78,320.02-117,505.33-36,227.71

Finding the Fourth Proportional to 78,320.02, 117,505.33 and 36,227.71

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Solution

The fourth proportional to 78,320.02, 117,505.33 and 36,227.71 is: 54,353.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,320.02 : 117,505.33 = 36,227.71 : x
  2. Step 2: Convert to fraction form
    78,320.02/117,505.33 = 36,227.71/x
  3. Step 3: Cross multiply
    78,320.02x = 117,505.33 × 36,227.71
  4. Step 4: Simplify right side
    78,320.02x = 4,256,948,792.04
  5. Step 5: Solve for x
    x = 4,256,948,792.04/78,320.02
  6. Step 6: Final answer
    x = 54,353.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.