Home / 89,387.90-134,131.10-54,352.16

Finding the Fourth Proportional to 89,387.90, 134,131.10 and 54,352.16

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Solution

The fourth proportional to 89,387.90, 134,131.10 and 54,352.16 is: 81,558.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,387.90 : 134,131.10 = 54,352.16 : x
  2. Step 2: Convert to fraction form
    89,387.90/134,131.10 = 54,352.16/x
  3. Step 3: Cross multiply
    89,387.90x = 134,131.10 × 54,352.16
  4. Step 4: Simplify right side
    89,387.90x = 7,290,315,008.18
  5. Step 5: Solve for x
    x = 7,290,315,008.18/89,387.90
  6. Step 6: Final answer
    x = 81,558.19

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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.