Home / 99,935.36-137,909.10-54,612.36

Finding the Fourth Proportional to 99,935.36, 137,909.10 and 54,612.36

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Solution

The fourth proportional to 99,935.36, 137,909.10 and 54,612.36 is: 75,364.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,935.36 : 137,909.10 = 54,612.36 : x
  2. Step 2: Convert to fraction form
    99,935.36/137,909.10 = 54,612.36/x
  3. Step 3: Cross multiply
    99,935.36x = 137,909.10 × 54,612.36
  4. Step 4: Simplify right side
    99,935.36x = 7,531,541,416.48
  5. Step 5: Solve for x
    x = 7,531,541,416.48/99,935.36
  6. Step 6: Final answer
    x = 75,364.13

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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.