Home / 87,715.52-121,047.50-47,429.26

Finding the Fourth Proportional to 87,715.52, 121,047.50 and 47,429.26

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Solution

The fourth proportional to 87,715.52, 121,047.50 and 47,429.26 is: 65,452.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,715.52 : 121,047.50 = 47,429.26 : x
  2. Step 2: Convert to fraction form
    87,715.52/121,047.50 = 47,429.26/x
  3. Step 3: Cross multiply
    87,715.52x = 121,047.50 × 47,429.26
  4. Step 4: Simplify right side
    87,715.52x = 5,741,193,349.85
  5. Step 5: Solve for x
    x = 5,741,193,349.85/87,715.52
  6. Step 6: Final answer
    x = 65,452.42

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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.