Home / 74,418.30-102,695.11-40,425.30

Finding the Fourth Proportional to 74,418.30, 102,695.11 and 40,425.30

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Solution

The fourth proportional to 74,418.30, 102,695.11 and 40,425.30 is: 55,785.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,418.30 : 102,695.11 = 40,425.30 : x
  2. Step 2: Convert to fraction form
    74,418.30/102,695.11 = 40,425.30/x
  3. Step 3: Cross multiply
    74,418.30x = 102,695.11 × 40,425.30
  4. Step 4: Simplify right side
    74,418.30x = 4,151,480,630.28
  5. Step 5: Solve for x
    x = 4,151,480,630.28/74,418.30
  6. Step 6: Final answer
    x = 55,785.75

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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.