Home / 87,884.84-121,280.38-47,597.68

Finding the Fourth Proportional to 87,884.84, 121,280.38 and 47,597.68

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Solution

The fourth proportional to 87,884.84, 121,280.38 and 47,597.68 is: 65,684.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,884.84 : 121,280.38 = 47,597.68 : x
  2. Step 2: Convert to fraction form
    87,884.84/121,280.38 = 47,597.68/x
  3. Step 3: Cross multiply
    87,884.84x = 121,280.38 × 47,597.68
  4. Step 4: Simplify right side
    87,884.84x = 5,772,664,717.52
  5. Step 5: Solve for x
    x = 5,772,664,717.52/87,884.84
  6. Step 6: Final answer
    x = 65,684.42

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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.