Home / 80,835.14-111,534.90-49,011.86

Finding the Fourth Proportional to 80,835.14, 111,534.90 and 49,011.86

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Solution

The fourth proportional to 80,835.14, 111,534.90 and 49,011.86 is: 67,625.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,835.14 : 111,534.90 = 49,011.86 : x
  2. Step 2: Convert to fraction form
    80,835.14/111,534.90 = 49,011.86/x
  3. Step 3: Cross multiply
    80,835.14x = 111,534.90 × 49,011.86
  4. Step 4: Simplify right side
    80,835.14x = 5,466,532,903.91
  5. Step 5: Solve for x
    x = 5,466,532,903.91/80,835.14
  6. Step 6: Final answer
    x = 67,625.70

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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.