Home / 99,799.54-137,722.25-54,477.16

Finding the Fourth Proportional to 99,799.54, 137,722.25 and 54,477.16

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Solution

The fourth proportional to 99,799.54, 137,722.25 and 54,477.16 is: 75,177.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,799.54 : 137,722.25 = 54,477.16 : x
  2. Step 2: Convert to fraction form
    99,799.54/137,722.25 = 54,477.16/x
  3. Step 3: Cross multiply
    99,799.54x = 137,722.25 × 54,477.16
  4. Step 4: Simplify right side
    99,799.54x = 7,502,716,840.70
  5. Step 5: Solve for x
    x = 7,502,716,840.70/99,799.54
  6. Step 6: Final answer
    x = 75,177.87

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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.