Home / 61,789.11-85,380.26-49,312.95

Finding the Fourth Proportional to 61,789.11, 85,380.26 and 49,312.95

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Solution

The fourth proportional to 61,789.11, 85,380.26 and 49,312.95 is: 68,140.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,789.11 : 85,380.26 = 49,312.95 : x
  2. Step 2: Convert to fraction form
    61,789.11/85,380.26 = 49,312.95/x
  3. Step 3: Cross multiply
    61,789.11x = 85,380.26 × 49,312.95
  4. Step 4: Simplify right side
    61,789.11x = 4,210,352,245.80
  5. Step 5: Solve for x
    x = 4,210,352,245.80/61,789.11
  6. Step 6: Final answer
    x = 68,140.68

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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.