Home / 77,680.24-116,522.94-21,520.92

Finding the Fourth Proportional to 77,680.24, 116,522.94 and 21,520.92

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Solution

The fourth proportional to 77,680.24, 116,522.94 and 21,520.92 is: 32,282.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,680.24 : 116,522.94 = 21,520.92 : x
  2. Step 2: Convert to fraction form
    77,680.24/116,522.94 = 21,520.92/x
  3. Step 3: Cross multiply
    77,680.24x = 116,522.94 × 21,520.92
  4. Step 4: Simplify right side
    77,680.24x = 2,507,680,869.90
  5. Step 5: Solve for x
    x = 2,507,680,869.90/77,680.24
  6. Step 6: Final answer
    x = 32,282.09

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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.