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Finding the Fourth Proportional to 77,449.96, 115,987.80 and 44,068.90

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Solution

The fourth proportional to 77,449.96, 115,987.80 and 44,068.90 is: 65,996.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,449.96 : 115,987.80 = 44,068.90 : x
  2. Step 2: Convert to fraction form
    77,449.96/115,987.80 = 44,068.90/x
  3. Step 3: Cross multiply
    77,449.96x = 115,987.80 × 44,068.90
  4. Step 4: Simplify right side
    77,449.96x = 5,111,454,759.42
  5. Step 5: Solve for x
    x = 5,111,454,759.42/77,449.96
  6. Step 6: Final answer
    x = 65,996.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.