Home / 87,808.50-121,175.70-47,522.25

Finding the Fourth Proportional to 87,808.50, 121,175.70 and 47,522.25

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Solution

The fourth proportional to 87,808.50, 121,175.70 and 47,522.25 is: 65,580.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,808.50 : 121,175.70 = 47,522.25 : x
  2. Step 2: Convert to fraction form
    87,808.50/121,175.70 = 47,522.25/x
  3. Step 3: Cross multiply
    87,808.50x = 121,175.70 × 47,522.25
  4. Step 4: Simplify right side
    87,808.50x = 5,758,541,909.33
  5. Step 5: Solve for x
    x = 5,758,541,909.33/87,808.50
  6. Step 6: Final answer
    x = 65,580.69

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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.