Home / 74,708.28-103,064.76-49,181.76

Finding the Fourth Proportional to 74,708.28, 103,064.76 and 49,181.76

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Solution

The fourth proportional to 74,708.28, 103,064.76 and 49,181.76 is: 67,849.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,708.28 : 103,064.76 = 49,181.76 : x
  2. Step 2: Convert to fraction form
    74,708.28/103,064.76 = 49,181.76/x
  3. Step 3: Cross multiply
    74,708.28x = 103,064.76 × 49,181.76
  4. Step 4: Simplify right side
    74,708.28x = 5,068,906,290.78
  5. Step 5: Solve for x
    x = 5,068,906,290.78/74,708.28
  6. Step 6: Final answer
    x = 67,849.32

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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.