Home / 74,272.87-102,499.19-53,102.71

Finding the Fourth Proportional to 74,272.87, 102,499.19 and 53,102.71

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Solution

The fourth proportional to 74,272.87, 102,499.19 and 53,102.71 is: 73,283.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,272.87 : 102,499.19 = 53,102.71 : x
  2. Step 2: Convert to fraction form
    74,272.87/102,499.19 = 53,102.71/x
  3. Step 3: Cross multiply
    74,272.87x = 102,499.19 × 53,102.71
  4. Step 4: Simplify right side
    74,272.87x = 5,442,984,761.80
  5. Step 5: Solve for x
    x = 5,442,984,761.80/74,272.87
  6. Step 6: Final answer
    x = 73,283.62

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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.