Home / 99,655.12-137,522.28-54,335.08

Finding the Fourth Proportional to 99,655.12, 137,522.28 and 54,335.08

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Solution

The fourth proportional to 99,655.12, 137,522.28 and 54,335.08 is: 74,981.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,655.12 : 137,522.28 = 54,335.08 : x
  2. Step 2: Convert to fraction form
    99,655.12/137,522.28 = 54,335.08/x
  3. Step 3: Cross multiply
    99,655.12x = 137,522.28 × 54,335.08
  4. Step 4: Simplify right side
    99,655.12x = 7,472,284,085.58
  5. Step 5: Solve for x
    x = 7,472,284,085.58/99,655.12
  6. Step 6: Final answer
    x = 74,981.44

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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.