Home / 99,454.13-137,250.65-57,020.86

Finding the Fourth Proportional to 99,454.13, 137,250.65 and 57,020.86

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Solution

The fourth proportional to 99,454.13, 137,250.65 and 57,020.86 is: 78,691.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,454.13 : 137,250.65 = 57,020.86 : x
  2. Step 2: Convert to fraction form
    99,454.13/137,250.65 = 57,020.86/x
  3. Step 3: Cross multiply
    99,454.13x = 137,250.65 × 57,020.86
  4. Step 4: Simplify right side
    99,454.13x = 7,826,150,412.67
  5. Step 5: Solve for x
    x = 7,826,150,412.67/99,454.13
  6. Step 6: Final answer
    x = 78,691.06

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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.