Home / 89,851.87-123,995.58-49,565.72

Finding the Fourth Proportional to 89,851.87, 123,995.58 and 49,565.72

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Solution

The fourth proportional to 89,851.87, 123,995.58 and 49,565.72 is: 68,400.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,851.87 : 123,995.58 = 49,565.72 : x
  2. Step 2: Convert to fraction form
    89,851.87/123,995.58 = 49,565.72/x
  3. Step 3: Cross multiply
    89,851.87x = 123,995.58 × 49,565.72
  4. Step 4: Simplify right side
    89,851.87x = 6,145,930,323.64
  5. Step 5: Solve for x
    x = 6,145,930,323.64/89,851.87
  6. Step 6: Final answer
    x = 68,400.70

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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.