Home / 49,490.91-74,140.65-30,778.43

Finding the Fourth Proportional to 49,490.91, 74,140.65 and 30,778.43

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Solution

The fourth proportional to 49,490.91, 74,140.65 and 30,778.43 is: 46,108.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,490.91 : 74,140.65 = 30,778.43 : x
  2. Step 2: Convert to fraction form
    49,490.91/74,140.65 = 30,778.43/x
  3. Step 3: Cross multiply
    49,490.91x = 74,140.65 × 30,778.43
  4. Step 4: Simplify right side
    49,490.91x = 2,281,932,806.18
  5. Step 5: Solve for x
    x = 2,281,932,806.18/49,490.91
  6. Step 6: Final answer
    x = 46,108.12

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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.