Home / 87,914.35-121,321.85-47,628.39

Finding the Fourth Proportional to 87,914.35, 121,321.85 and 47,628.39

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Solution

The fourth proportional to 87,914.35, 121,321.85 and 47,628.39 is: 65,727.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,914.35 : 121,321.85 = 47,628.39 : x
  2. Step 2: Convert to fraction form
    87,914.35/121,321.85 = 47,628.39/x
  3. Step 3: Cross multiply
    87,914.35x = 121,321.85 × 47,628.39
  4. Step 4: Simplify right side
    87,914.35x = 5,778,364,149.18
  5. Step 5: Solve for x
    x = 5,778,364,149.18/87,914.35
  6. Step 6: Final answer
    x = 65,727.20

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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.