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Finding the Fourth Proportional to 87,155.40, 130,715.88 and 23,959.21

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Solution

The fourth proportional to 87,155.40, 130,715.88 and 23,959.21 is: 35,934.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,155.40 : 130,715.88 = 23,959.21 : x
  2. Step 2: Convert to fraction form
    87,155.40/130,715.88 = 23,959.21/x
  3. Step 3: Cross multiply
    87,155.40x = 130,715.88 × 23,959.21
  4. Step 4: Simplify right side
    87,155.40x = 3,131,849,399.25
  5. Step 5: Solve for x
    x = 3,131,849,399.25/87,155.40
  6. Step 6: Final answer
    x = 35,934.09

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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.