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Finding the Fourth Proportional to 74,877.30, 112,250.16 and 30,541.38

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Solution

The fourth proportional to 74,877.30, 112,250.16 and 30,541.38 is: 45,785.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,877.30 : 112,250.16 = 30,541.38 : x
  2. Step 2: Convert to fraction form
    74,877.30/112,250.16 = 30,541.38/x
  3. Step 3: Cross multiply
    74,877.30x = 112,250.16 × 30,541.38
  4. Step 4: Simplify right side
    74,877.30x = 3,428,274,791.62
  5. Step 5: Solve for x
    x = 3,428,274,791.62/74,877.30
  6. Step 6: Final answer
    x = 45,785.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.