Home / 80,818.60-121,269.42-35,870.77

Finding the Fourth Proportional to 80,818.60, 121,269.42 and 35,870.77

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Solution

The fourth proportional to 80,818.60, 121,269.42 and 35,870.77 is: 53,824.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,818.60 : 121,269.42 = 35,870.77 : x
  2. Step 2: Convert to fraction form
    80,818.60/121,269.42 = 35,870.77/x
  3. Step 3: Cross multiply
    80,818.60x = 121,269.42 × 35,870.77
  4. Step 4: Simplify right side
    80,818.60x = 4,350,027,472.85
  5. Step 5: Solve for x
    x = 4,350,027,472.85/80,818.60
  6. Step 6: Final answer
    x = 53,824.58

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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.