Home / 74,565.77-102,905.18-42,736.71

Finding the Fourth Proportional to 74,565.77, 102,905.18 and 42,736.71

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Solution

The fourth proportional to 74,565.77, 102,905.18 and 42,736.71 is: 58,979.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,565.77 : 102,905.18 = 42,736.71 : x
  2. Step 2: Convert to fraction form
    74,565.77/102,905.18 = 42,736.71/x
  3. Step 3: Cross multiply
    74,565.77x = 102,905.18 × 42,736.71
  4. Step 4: Simplify right side
    74,565.77x = 4,397,829,408.03
  5. Step 5: Solve for x
    x = 4,397,829,408.03/74,565.77
  6. Step 6: Final answer
    x = 58,979.20

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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.