Home / 87,859.40-121,246.20-47,573.64

Finding the Fourth Proportional to 87,859.40, 121,246.20 and 47,573.64

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Solution

The fourth proportional to 87,859.40, 121,246.20 and 47,573.64 is: 65,651.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,859.40 : 121,246.20 = 47,573.64 : x
  2. Step 2: Convert to fraction form
    87,859.40/121,246.20 = 47,573.64/x
  3. Step 3: Cross multiply
    87,859.40x = 121,246.20 × 47,573.64
  4. Step 4: Simplify right side
    87,859.40x = 5,768,123,070.17
  5. Step 5: Solve for x
    x = 5,768,123,070.17/87,859.40
  6. Step 6: Final answer
    x = 65,651.75

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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.