Home / 87,799.71-121,162.67-47,512.58

Finding the Fourth Proportional to 87,799.71, 121,162.67 and 47,512.58

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Solution

The fourth proportional to 87,799.71, 121,162.67 and 47,512.58 is: 65,566.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,799.71 : 121,162.67 = 47,512.58 : x
  2. Step 2: Convert to fraction form
    87,799.71/121,162.67 = 47,512.58/x
  3. Step 3: Cross multiply
    87,799.71x = 121,162.67 × 47,512.58
  4. Step 4: Simplify right side
    87,799.71x = 5,756,750,386.18
  5. Step 5: Solve for x
    x = 5,756,750,386.18/87,799.71
  6. Step 6: Final answer
    x = 65,566.85

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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.