Home / 99,632.33-137,489.87-54,311.20

Finding the Fourth Proportional to 99,632.33, 137,489.87 and 54,311.20

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Solution

The fourth proportional to 99,632.33, 137,489.87 and 54,311.20 is: 74,947.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,632.33 : 137,489.87 = 54,311.20 : x
  2. Step 2: Convert to fraction form
    99,632.33/137,489.87 = 54,311.20/x
  3. Step 3: Cross multiply
    99,632.33x = 137,489.87 × 54,311.20
  4. Step 4: Simplify right side
    99,632.33x = 7,467,239,212.26
  5. Step 5: Solve for x
    x = 7,467,239,212.26/99,632.33
  6. Step 6: Final answer
    x = 74,947.95

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1.5x scale

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.