Home / 88,149.16-121,645.88-47,863

Finding the Fourth Proportional to 88,149.16, 121,645.88 and 47,863

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Solution

The fourth proportional to 88,149.16, 121,645.88 and 47,863 is: 66,050.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,149.16 : 121,645.88 = 47,863 : x
  2. Step 2: Convert to fraction form
    88,149.16/121,645.88 = 47,863/x
  3. Step 3: Cross multiply
    88,149.16x = 121,645.88 × 47,863
  4. Step 4: Simplify right side
    88,149.16x = 5,822,336,754.44
  5. Step 5: Solve for x
    x = 5,822,336,754.44/88,149.16
  6. Step 6: Final answer
    x = 66,050.96

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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.