Home / 87,971.84-131,937.51-52,443.18

Finding the Fourth Proportional to 87,971.84, 131,937.51 and 52,443.18

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Solution

The fourth proportional to 87,971.84, 131,937.51 and 52,443.18 is: 78,652.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,971.84 : 131,937.51 = 52,443.18 : x
  2. Step 2: Convert to fraction form
    87,971.84/131,937.51 = 52,443.18/x
  3. Step 3: Cross multiply
    87,971.84x = 131,937.51 × 52,443.18
  4. Step 4: Simplify right side
    87,971.84x = 6,919,222,585.68
  5. Step 5: Solve for x
    x = 6,919,222,585.68/87,971.84
  6. Step 6: Final answer
    x = 78,652.70

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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.