Home / 49,489.91-74,139.15-30,777.43

Finding the Fourth Proportional to 49,489.91, 74,139.15 and 30,777.43

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Solution

The fourth proportional to 49,489.91, 74,139.15 and 30,777.43 is: 46,106.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,489.91 : 74,139.15 = 30,777.43 : x
  2. Step 2: Convert to fraction form
    49,489.91/74,139.15 = 30,777.43/x
  3. Step 3: Cross multiply
    49,489.91x = 74,139.15 × 30,777.43
  4. Step 4: Simplify right side
    49,489.91x = 2,281,812,499.38
  5. Step 5: Solve for x
    x = 2,281,812,499.38/49,489.91
  6. Step 6: Final answer
    x = 46,106.62

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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.