Home / 87,874.49-121,268.82-51,586.25

Finding the Fourth Proportional to 87,874.49, 121,268.82 and 51,586.25

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Solution

The fourth proportional to 87,874.49, 121,268.82 and 51,586.25 is: 71,190.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,874.49 : 121,268.82 = 51,586.25 : x
  2. Step 2: Convert to fraction form
    87,874.49/121,268.82 = 51,586.25/x
  3. Step 3: Cross multiply
    87,874.49x = 121,268.82 × 51,586.25
  4. Step 4: Simplify right side
    87,874.49x = 6,255,803,059.38
  5. Step 5: Solve for x
    x = 6,255,803,059.38/87,874.49
  6. Step 6: Final answer
    x = 71,190.21

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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.