Home / 87,811.77-121,179.20-47,524.58

Finding the Fourth Proportional to 87,811.77, 121,179.20 and 47,524.58

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Solution

The fourth proportional to 87,811.77, 121,179.20 and 47,524.58 is: 65,583.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,811.77 : 121,179.20 = 47,524.58 : x
  2. Step 2: Convert to fraction form
    87,811.77/121,179.20 = 47,524.58/x
  3. Step 3: Cross multiply
    87,811.77x = 121,179.20 × 47,524.58
  4. Step 4: Simplify right side
    87,811.77x = 5,758,989,741.22
  5. Step 5: Solve for x
    x = 5,758,989,741.22/87,811.77
  6. Step 6: Final answer
    x = 65,583.35

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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.