Home / 87,812.10-121,180.56-47,525.84

Finding the Fourth Proportional to 87,812.10, 121,180.56 and 47,525.84

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Solution

The fourth proportional to 87,812.10, 121,180.56 and 47,525.84 is: 65,585.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,812.10 : 121,180.56 = 47,525.84 : x
  2. Step 2: Convert to fraction form
    87,812.10/121,180.56 = 47,525.84/x
  3. Step 3: Cross multiply
    87,812.10x = 121,180.56 × 47,525.84
  4. Step 4: Simplify right side
    87,812.10x = 5,759,207,575.97
  5. Step 5: Solve for x
    x = 5,759,207,575.97/87,812.10
  6. Step 6: Final answer
    x = 65,585.58

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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.