Home / 99,688.01-137,572.05-54,367.91

Finding the Fourth Proportional to 99,688.01, 137,572.05 and 54,367.91

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Solution

The fourth proportional to 99,688.01, 137,572.05 and 54,367.91 is: 75,029.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,688.01 : 137,572.05 = 54,367.91 : x
  2. Step 2: Convert to fraction form
    99,688.01/137,572.05 = 54,367.91/x
  3. Step 3: Cross multiply
    99,688.01x = 137,572.05 × 54,367.91
  4. Step 4: Simplify right side
    99,688.01x = 7,479,504,145.06
  5. Step 5: Solve for x
    x = 7,479,504,145.06/99,688.01
  6. Step 6: Final answer
    x = 75,029.13

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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.