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Finding the Fourth Proportional to 66,737.16, 92,067.98 and 39,866.22

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Solution

The fourth proportional to 66,737.16, 92,067.98 and 39,866.22 is: 54,997.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,737.16 : 92,067.98 = 39,866.22 : x
  2. Step 2: Convert to fraction form
    66,737.16/92,067.98 = 39,866.22/x
  3. Step 3: Cross multiply
    66,737.16x = 92,067.98 × 39,866.22
  4. Step 4: Simplify right side
    66,737.16x = 3,670,402,146.30
  5. Step 5: Solve for x
    x = 3,670,402,146.30/66,737.16
  6. Step 6: Final answer
    x = 54,997.88

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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.