Home / 99,904.04-137,877.11-54,588.91

Finding the Fourth Proportional to 99,904.04, 137,877.11 and 54,588.91

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Solution

The fourth proportional to 99,904.04, 137,877.11 and 54,588.91 is: 75,337.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,904.04 : 137,877.11 = 54,588.91 : x
  2. Step 2: Convert to fraction form
    99,904.04/137,877.11 = 54,588.91/x
  3. Step 3: Cross multiply
    99,904.04x = 137,877.11 × 54,588.91
  4. Step 4: Simplify right side
    99,904.04x = 7,526,560,531.21
  5. Step 5: Solve for x
    x = 7,526,560,531.21/99,904.04
  6. Step 6: Final answer
    x = 75,337.90

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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.