Home / 99,563.10-137,415.87-57,149.34

Finding the Fourth Proportional to 99,563.10, 137,415.87 and 57,149.34

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Solution

The fourth proportional to 99,563.10, 137,415.87 and 57,149.34 is: 78,876.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,563.10 : 137,415.87 = 57,149.34 : x
  2. Step 2: Convert to fraction form
    99,563.10/137,415.87 = 57,149.34/x
  3. Step 3: Cross multiply
    99,563.10x = 137,415.87 × 57,149.34
  4. Step 4: Simplify right side
    99,563.10x = 7,853,226,276.03
  5. Step 5: Solve for x
    x = 7,853,226,276.03/99,563.10
  6. Step 6: Final answer
    x = 78,876.88

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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.