Home / 79,787.07-119,687.49-20,622.24

Finding the Fourth Proportional to 79,787.07, 119,687.49 and 20,622.24

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Solution

The fourth proportional to 79,787.07, 119,687.49 and 20,622.24 is: 30,935.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,787.07 : 119,687.49 = 20,622.24 : x
  2. Step 2: Convert to fraction form
    79,787.07/119,687.49 = 20,622.24/x
  3. Step 3: Cross multiply
    79,787.07x = 119,687.49 × 20,622.24
  4. Step 4: Simplify right side
    79,787.07x = 2,468,224,143.78
  5. Step 5: Solve for x
    x = 2,468,224,143.78/79,787.07
  6. Step 6: Final answer
    x = 30,935.14

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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.