Home / 74,397.76-102,717.12-51,729.28

Finding the Fourth Proportional to 74,397.76, 102,717.12 and 51,729.28

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Solution

The fourth proportional to 74,397.76, 102,717.12 and 51,729.28 is: 71,419.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,397.76 : 102,717.12 = 51,729.28 : x
  2. Step 2: Convert to fraction form
    74,397.76/102,717.12 = 51,729.28/x
  3. Step 3: Cross multiply
    74,397.76x = 102,717.12 × 51,729.28
  4. Step 4: Simplify right side
    74,397.76x = 5,313,482,661.27
  5. Step 5: Solve for x
    x = 5,313,482,661.27/74,397.76
  6. Step 6: Final answer
    x = 71,419.93

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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.