Home / 87,892.32-131,761.26-45,683.40

Finding the Fourth Proportional to 87,892.32, 131,761.26 and 45,683.40

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Solution

The fourth proportional to 87,892.32, 131,761.26 and 45,683.40 is: 68,484.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,892.32 : 131,761.26 = 45,683.40 : x
  2. Step 2: Convert to fraction form
    87,892.32/131,761.26 = 45,683.40/x
  3. Step 3: Cross multiply
    87,892.32x = 131,761.26 × 45,683.40
  4. Step 4: Simplify right side
    87,892.32x = 6,019,302,345.08
  5. Step 5: Solve for x
    x = 6,019,302,345.08/87,892.32
  6. Step 6: Final answer
    x = 68,484.96

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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.