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Finding the Fourth Proportional to 66,924.80, 92,359.12 and 40,062.11

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Solution

The fourth proportional to 66,924.80, 92,359.12 and 40,062.11 is: 55,287.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,924.80 : 92,359.12 = 40,062.11 : x
  2. Step 2: Convert to fraction form
    66,924.80/92,359.12 = 40,062.11/x
  3. Step 3: Cross multiply
    66,924.80x = 92,359.12 × 40,062.11
  4. Step 4: Simplify right side
    66,924.80x = 3,700,101,257.63
  5. Step 5: Solve for x
    x = 3,700,101,257.63/66,924.80
  6. Step 6: Final answer
    x = 55,287.45

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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.