Home / 80,601.16-120,888.24-21,437.68

Finding the Fourth Proportional to 80,601.16, 120,888.24 and 21,437.68

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Solution

The fourth proportional to 80,601.16, 120,888.24 and 21,437.68 is: 32,152.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,601.16 : 120,888.24 = 21,437.68 : x
  2. Step 2: Convert to fraction form
    80,601.16/120,888.24 = 21,437.68/x
  3. Step 3: Cross multiply
    80,601.16x = 120,888.24 × 21,437.68
  4. Step 4: Simplify right side
    80,601.16x = 2,591,563,404.88
  5. Step 5: Solve for x
    x = 2,591,563,404.88/80,601.16
  6. Step 6: Final answer
    x = 32,152.93

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1.5x scale

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.