Home / 74,749.76-112,049.04-48,471.20

Finding the Fourth Proportional to 74,749.76, 112,049.04 and 48,471.20

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Solution

The fourth proportional to 74,749.76, 112,049.04 and 48,471.20 is: 72,657.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,749.76 : 112,049.04 = 48,471.20 : x
  2. Step 2: Convert to fraction form
    74,749.76/112,049.04 = 48,471.20/x
  3. Step 3: Cross multiply
    74,749.76x = 112,049.04 × 48,471.20
  4. Step 4: Simplify right side
    74,749.76x = 5,431,151,427.65
  5. Step 5: Solve for x
    x = 5,431,151,427.65/74,749.76
  6. Step 6: Final answer
    x = 72,657.78

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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.