Home / 99,902.66-137,875.21-54,587.54

Finding the Fourth Proportional to 99,902.66, 137,875.21 and 54,587.54

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Solution

The fourth proportional to 99,902.66, 137,875.21 and 54,587.54 is: 75,336.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,902.66 : 137,875.21 = 54,587.54 : x
  2. Step 2: Convert to fraction form
    99,902.66/137,875.21 = 54,587.54/x
  3. Step 3: Cross multiply
    99,902.66x = 137,875.21 × 54,587.54
  4. Step 4: Simplify right side
    99,902.66x = 7,526,267,715.04
  5. Step 5: Solve for x
    x = 7,526,267,715.04/99,902.66
  6. Step 6: Final answer
    x = 75,336.01

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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.