Home / 87,874.14-121,265.58-47,586.90

Finding the Fourth Proportional to 87,874.14, 121,265.58 and 47,586.90

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Solution

The fourth proportional to 87,874.14, 121,265.58 and 47,586.90 is: 65,669.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,874.14 : 121,265.58 = 47,586.90 : x
  2. Step 2: Convert to fraction form
    87,874.14/121,265.58 = 47,586.90/x
  3. Step 3: Cross multiply
    87,874.14x = 121,265.58 × 47,586.90
  4. Step 4: Simplify right side
    87,874.14x = 5,770,653,028.90
  5. Step 5: Solve for x
    x = 5,770,653,028.90/87,874.14
  6. Step 6: Final answer
    x = 65,669.52

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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.