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Finding the Fourth Proportional to 66,589.04, 91,901.04 and 42,706.88

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Solution

The fourth proportional to 66,589.04, 91,901.04 and 42,706.88 is: 58,940.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,589.04 : 91,901.04 = 42,706.88 : x
  2. Step 2: Convert to fraction form
    66,589.04/91,901.04 = 42,706.88/x
  3. Step 3: Cross multiply
    66,589.04x = 91,901.04 × 42,706.88
  4. Step 4: Simplify right side
    66,589.04x = 3,924,806,687.16
  5. Step 5: Solve for x
    x = 3,924,806,687.16/66,589.04
  6. Step 6: Final answer
    x = 58,940.73

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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.