Home / 87,735.54-121,074.69-47,449.35

Finding the Fourth Proportional to 87,735.54, 121,074.69 and 47,449.35

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Solution

The fourth proportional to 87,735.54, 121,074.69 and 47,449.35 is: 65,479.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,735.54 : 121,074.69 = 47,449.35 : x
  2. Step 2: Convert to fraction form
    87,735.54/121,074.69 = 47,449.35/x
  3. Step 3: Cross multiply
    87,735.54x = 121,074.69 × 47,449.35
  4. Step 4: Simplify right side
    87,735.54x = 5,744,914,736.58
  5. Step 5: Solve for x
    x = 5,744,914,736.58/87,735.54
  6. Step 6: Final answer
    x = 65,479.91

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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.