Home / 74,531.29-102,867.22-42,700.11

Finding the Fourth Proportional to 74,531.29, 102,867.22 and 42,700.11

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Solution

The fourth proportional to 74,531.29, 102,867.22 and 42,700.11 is: 58,934.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,531.29 : 102,867.22 = 42,700.11 : x
  2. Step 2: Convert to fraction form
    74,531.29/102,867.22 = 42,700.11/x
  3. Step 3: Cross multiply
    74,531.29x = 102,867.22 × 42,700.11
  4. Step 4: Simplify right side
    74,531.29x = 4,392,441,615.46
  5. Step 5: Solve for x
    x = 4,392,441,615.46/74,531.29
  6. Step 6: Final answer
    x = 58,934.20

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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.