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Finding the Fourth Proportional to 66,833.52, 92,230.24 and 39,977.16

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Solution

The fourth proportional to 66,833.52, 92,230.24 and 39,977.16 is: 55,168.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,833.52 : 92,230.24 = 39,977.16 : x
  2. Step 2: Convert to fraction form
    66,833.52/92,230.24 = 39,977.16/x
  3. Step 3: Cross multiply
    66,833.52x = 92,230.24 × 39,977.16
  4. Step 4: Simplify right side
    66,833.52x = 3,687,103,061.32
  5. Step 5: Solve for x
    x = 3,687,103,061.32/66,833.52
  6. Step 6: Final answer
    x = 55,168.47

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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.