Home / 87,920.28-121,329.82-47,635.04

Finding the Fourth Proportional to 87,920.28, 121,329.82 and 47,635.04

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Solution

The fourth proportional to 87,920.28, 121,329.82 and 47,635.04 is: 65,736.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,920.28 : 121,329.82 = 47,635.04 : x
  2. Step 2: Convert to fraction form
    87,920.28/121,329.82 = 47,635.04/x
  3. Step 3: Cross multiply
    87,920.28x = 121,329.82 × 47,635.04
  4. Step 4: Simplify right side
    87,920.28x = 5,779,550,590.72
  5. Step 5: Solve for x
    x = 5,779,550,590.72/87,920.28
  6. Step 6: Final answer
    x = 65,736.27

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1.5x scale

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.