Home / 89,859.20-134,522.56-66,590.08

Finding the Fourth Proportional to 89,859.20, 134,522.56 and 66,590.08

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Solution

The fourth proportional to 89,859.20, 134,522.56 and 66,590.08 is: 99,687.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,859.20 : 134,522.56 = 66,590.08 : x
  2. Step 2: Convert to fraction form
    89,859.20/134,522.56 = 66,590.08/x
  3. Step 3: Cross multiply
    89,859.20x = 134,522.56 × 66,590.08
  4. Step 4: Simplify right side
    89,859.20x = 8,957,868,032.20
  5. Step 5: Solve for x
    x = 8,957,868,032.20/89,859.20
  6. Step 6: Final answer
    x = 99,687.82

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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.