Home / 80,543.30-111,146.15-48,295.72

Finding the Fourth Proportional to 80,543.30, 111,146.15 and 48,295.72

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Solution

The fourth proportional to 80,543.30, 111,146.15 and 48,295.72 is: 66,645.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,543.30 : 111,146.15 = 48,295.72 : x
  2. Step 2: Convert to fraction form
    80,543.30/111,146.15 = 48,295.72/x
  3. Step 3: Cross multiply
    80,543.30x = 111,146.15 × 48,295.72
  4. Step 4: Simplify right side
    80,543.30x = 5,367,883,339.48
  5. Step 5: Solve for x
    x = 5,367,883,339.48/80,543.30
  6. Step 6: Final answer
    x = 66,645.93

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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.