Home / 85,426.38-127,964.61-47,984.94

Finding the Fourth Proportional to 85,426.38, 127,964.61 and 47,984.94

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Solution

The fourth proportional to 85,426.38, 127,964.61 and 47,984.94 is: 71,879.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,426.38 : 127,964.61 = 47,984.94 : x
  2. Step 2: Convert to fraction form
    85,426.38/127,964.61 = 47,984.94/x
  3. Step 3: Cross multiply
    85,426.38x = 127,964.61 × 47,984.94
  4. Step 4: Simplify right side
    85,426.38x = 6,140,374,132.97
  5. Step 5: Solve for x
    x = 6,140,374,132.97/85,426.38
  6. Step 6: Final answer
    x = 71,879.13

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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.