Home / 99,753.40-137,654.83-54,428.68

Finding the Fourth Proportional to 99,753.40, 137,654.83 and 54,428.68

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Solution

The fourth proportional to 99,753.40, 137,654.83 and 54,428.68 is: 75,108.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,753.40 : 137,654.83 = 54,428.68 : x
  2. Step 2: Convert to fraction form
    99,753.40/137,654.83 = 54,428.68/x
  3. Step 3: Cross multiply
    99,753.40x = 137,654.83 × 54,428.68
  4. Step 4: Simplify right side
    99,753.40x = 7,492,370,692.52
  5. Step 5: Solve for x
    x = 7,492,370,692.52/99,753.40
  6. Step 6: Final answer
    x = 75,108.93

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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.