Home / 99,830.80-137,769.34-54,511.66

Finding the Fourth Proportional to 99,830.80, 137,769.34 and 54,511.66

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Solution

The fourth proportional to 99,830.80, 137,769.34 and 54,511.66 is: 75,227.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,830.80 : 137,769.34 = 54,511.66 : x
  2. Step 2: Convert to fraction form
    99,830.80/137,769.34 = 54,511.66/x
  3. Step 3: Cross multiply
    99,830.80x = 137,769.34 × 54,511.66
  4. Step 4: Simplify right side
    99,830.80x = 7,510,034,937.01
  5. Step 5: Solve for x
    x = 7,510,034,937.01/99,830.80
  6. Step 6: Final answer
    x = 75,227.63

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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.