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Finding the Fourth Proportional to 66,482.49, 91,737.60 and 40,654.02

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Solution

The fourth proportional to 66,482.49, 91,737.60 and 40,654.02 is: 56,097.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,482.49 : 91,737.60 = 40,654.02 : x
  2. Step 2: Convert to fraction form
    66,482.49/91,737.60 = 40,654.02/x
  3. Step 3: Cross multiply
    66,482.49x = 91,737.60 × 40,654.02
  4. Step 4: Simplify right side
    66,482.49x = 3,729,502,225.15
  5. Step 5: Solve for x
    x = 3,729,502,225.15/66,482.49
  6. Step 6: Final answer
    x = 56,097.51

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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.