Home / 89,781.90-134,672.85-58,289.10

Finding the Fourth Proportional to 89,781.90, 134,672.85 and 58,289.10

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Solution

The fourth proportional to 89,781.90, 134,672.85 and 58,289.10 is: 87,433.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,781.90 : 134,672.85 = 58,289.10 : x
  2. Step 2: Convert to fraction form
    89,781.90/134,672.85 = 58,289.10/x
  3. Step 3: Cross multiply
    89,781.90x = 134,672.85 × 58,289.10
  4. Step 4: Simplify right side
    89,781.90x = 7,849,959,220.94
  5. Step 5: Solve for x
    x = 7,849,959,220.94/89,781.90
  6. Step 6: Final answer
    x = 87,433.65

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Similar ratio
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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.