Home / 71,909.28-99,167.76-46,749.60

Finding the Fourth Proportional to 71,909.28, 99,167.76 and 46,749.60

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Solution

The fourth proportional to 71,909.28, 99,167.76 and 46,749.60 is: 64,470.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,909.28 : 99,167.76 = 46,749.60 : x
  2. Step 2: Convert to fraction form
    71,909.28/99,167.76 = 46,749.60/x
  3. Step 3: Cross multiply
    71,909.28x = 99,167.76 × 46,749.60
  4. Step 4: Simplify right side
    71,909.28x = 4,636,053,112.90
  5. Step 5: Solve for x
    x = 4,636,053,112.90/71,909.28
  6. Step 6: Final answer
    x = 64,470.86

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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.