Home / 87,932.14-121,364.68-80,847.34

Finding the Fourth Proportional to 87,932.14, 121,364.68 and 80,847.34

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Solution

The fourth proportional to 87,932.14, 121,364.68 and 80,847.34 is: 111,586.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,932.14 : 121,364.68 = 80,847.34 : x
  2. Step 2: Convert to fraction form
    87,932.14/121,364.68 = 80,847.34/x
  3. Step 3: Cross multiply
    87,932.14x = 121,364.68 × 80,847.34
  4. Step 4: Simplify right side
    87,932.14x = 9,812,011,547.95
  5. Step 5: Solve for x
    x = 9,812,011,547.95/87,932.14
  6. Step 6: Final answer
    x = 111,586.18

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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.