Home / 74,245.58-111,442.50-40,981.31

Finding the Fourth Proportional to 74,245.58, 111,442.50 and 40,981.31

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Solution

The fourth proportional to 74,245.58, 111,442.50 and 40,981.31 is: 61,512.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,245.58 : 111,442.50 = 40,981.31 : x
  2. Step 2: Convert to fraction form
    74,245.58/111,442.50 = 40,981.31/x
  3. Step 3: Cross multiply
    74,245.58x = 111,442.50 × 40,981.31
  4. Step 4: Simplify right side
    74,245.58x = 4,567,059,082.46
  5. Step 5: Solve for x
    x = 4,567,059,082.46/74,245.58
  6. Step 6: Final answer
    x = 61,512.88

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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.