Home / 87,971.27-121,394.16-49,732.58

Finding the Fourth Proportional to 87,971.27, 121,394.16 and 49,732.58

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Solution

The fourth proportional to 87,971.27, 121,394.16 and 49,732.58 is: 68,627.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,971.27 : 121,394.16 = 49,732.58 : x
  2. Step 2: Convert to fraction form
    87,971.27/121,394.16 = 49,732.58/x
  3. Step 3: Cross multiply
    87,971.27x = 121,394.16 × 49,732.58
  4. Step 4: Simplify right side
    87,971.27x = 6,037,245,077.22
  5. Step 5: Solve for x
    x = 6,037,245,077.22/87,971.27
  6. Step 6: Final answer
    x = 68,627.47

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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.