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Finding the Fourth Proportional to 99,459.36, 137,253.60 and 54,747.36

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Solution

The fourth proportional to 99,459.36, 137,253.60 and 54,747.36 is: 75,551.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,459.36 : 137,253.60 = 54,747.36 : x
  2. Step 2: Convert to fraction form
    99,459.36/137,253.60 = 54,747.36/x
  3. Step 3: Cross multiply
    99,459.36x = 137,253.60 × 54,747.36
  4. Step 4: Simplify right side
    99,459.36x = 7,514,272,250.50
  5. Step 5: Solve for x
    x = 7,514,272,250.50/99,459.36
  6. Step 6: Final answer
    x = 75,551.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.