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Finding the Fourth Proportional to 95,079.29, 142,642.62 and 28,520.71

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Solution

The fourth proportional to 95,079.29, 142,642.62 and 28,520.71 is: 42,788.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,079.29 : 142,642.62 = 28,520.71 : x
  2. Step 2: Convert to fraction form
    95,079.29/142,642.62 = 28,520.71/x
  3. Step 3: Cross multiply
    95,079.29x = 142,642.62 × 28,520.71
  4. Step 4: Simplify right side
    95,079.29x = 4,068,268,442.05
  5. Step 5: Solve for x
    x = 4,068,268,442.05/95,079.29
  6. Step 6: Final answer
    x = 42,788.17

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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.