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Finding the Fourth Proportional to 66,060.71, 91,239.50 and 43,500.56

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Solution

The fourth proportional to 66,060.71, 91,239.50 and 43,500.56 is: 60,080.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,060.71 : 91,239.50 = 43,500.56 : x
  2. Step 2: Convert to fraction form
    66,060.71/91,239.50 = 43,500.56/x
  3. Step 3: Cross multiply
    66,060.71x = 91,239.50 × 43,500.56
  4. Step 4: Simplify right side
    66,060.71x = 3,968,969,126.62
  5. Step 5: Solve for x
    x = 3,968,969,126.62/66,060.71
  6. Step 6: Final answer
    x = 60,080.63

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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.