Home / 89,389.90-134,134.10-54,354.16

Finding the Fourth Proportional to 89,389.90, 134,134.10 and 54,354.16

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Solution

The fourth proportional to 89,389.90, 134,134.10 and 54,354.16 is: 81,561.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,389.90 : 134,134.10 = 54,354.16 : x
  2. Step 2: Convert to fraction form
    89,389.90/134,134.10 = 54,354.16/x
  3. Step 3: Cross multiply
    89,389.90x = 134,134.10 × 54,354.16
  4. Step 4: Simplify right side
    89,389.90x = 7,290,746,332.86
  5. Step 5: Solve for x
    x = 7,290,746,332.86/89,389.90
  6. Step 6: Final answer
    x = 81,561.19

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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.