Home / 99,360.38-137,115.99-54,037.39

Finding the Fourth Proportional to 99,360.38, 137,115.99 and 54,037.39

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Solution

The fourth proportional to 99,360.38, 137,115.99 and 54,037.39 is: 74,570.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,360.38 : 137,115.99 = 54,037.39 : x
  2. Step 2: Convert to fraction form
    99,360.38/137,115.99 = 54,037.39/x
  3. Step 3: Cross multiply
    99,360.38x = 137,115.99 × 54,037.39
  4. Step 4: Simplify right side
    99,360.38x = 7,409,390,333.99
  5. Step 5: Solve for x
    x = 7,409,390,333.99/99,360.38
  6. Step 6: Final answer
    x = 74,570.87

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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.