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Finding the Fourth Proportional to 58,162.31, 87,188.01 and 18,691.68

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Solution

The fourth proportional to 58,162.31, 87,188.01 and 18,691.68 is: 28,019.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,162.31 : 87,188.01 = 18,691.68 : x
  2. Step 2: Convert to fraction form
    58,162.31/87,188.01 = 18,691.68/x
  3. Step 3: Cross multiply
    58,162.31x = 87,188.01 × 18,691.68
  4. Step 4: Simplify right side
    58,162.31x = 1,629,690,382.76
  5. Step 5: Solve for x
    x = 1,629,690,382.76/58,162.31
  6. Step 6: Final answer
    x = 28,019.70

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1.5x scale

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.