Home / 99,931.46-137,906.01-54,609.93

Finding the Fourth Proportional to 99,931.46, 137,906.01 and 54,609.93

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Solution

The fourth proportional to 99,931.46, 137,906.01 and 54,609.93 is: 75,362.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,931.46 : 137,906.01 = 54,609.93 : x
  2. Step 2: Convert to fraction form
    99,931.46/137,906.01 = 54,609.93/x
  3. Step 3: Cross multiply
    99,931.46x = 137,906.01 × 54,609.93
  4. Step 4: Simplify right side
    99,931.46x = 7,531,037,552.68
  5. Step 5: Solve for x
    x = 7,531,037,552.68/99,931.46
  6. Step 6: Final answer
    x = 75,362.03

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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.