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Finding the Fourth Proportional to 86,659.10, 129,891.45 and 44,522.90

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Solution

The fourth proportional to 86,659.10, 129,891.45 and 44,522.90 is: 66,734.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,659.10 : 129,891.45 = 44,522.90 : x
  2. Step 2: Convert to fraction form
    86,659.10/129,891.45 = 44,522.90/x
  3. Step 3: Cross multiply
    86,659.10x = 129,891.45 × 44,522.90
  4. Step 4: Simplify right side
    86,659.10x = 5,783,144,039.21
  5. Step 5: Solve for x
    x = 5,783,144,039.21/86,659.10
  6. Step 6: Final answer
    x = 66,734.41

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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.