Home / 87,924.54-121,335.70-47,639.39

Finding the Fourth Proportional to 87,924.54, 121,335.70 and 47,639.39

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Solution

The fourth proportional to 87,924.54, 121,335.70 and 47,639.39 is: 65,742.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,924.54 : 121,335.70 = 47,639.39 : x
  2. Step 2: Convert to fraction form
    87,924.54/121,335.70 = 47,639.39/x
  3. Step 3: Cross multiply
    87,924.54x = 121,335.70 × 47,639.39
  4. Step 4: Simplify right side
    87,924.54x = 5,780,358,645.30
  5. Step 5: Solve for x
    x = 5,780,358,645.30/87,924.54
  6. Step 6: Final answer
    x = 65,742.27

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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.