Home / 88,085.22-121,579.20-54,101.85

Finding the Fourth Proportional to 88,085.22, 121,579.20 and 54,101.85

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Solution

The fourth proportional to 88,085.22, 121,579.20 and 54,101.85 is: 74,673.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,085.22 : 121,579.20 = 54,101.85 : x
  2. Step 2: Convert to fraction form
    88,085.22/121,579.20 = 54,101.85/x
  3. Step 3: Cross multiply
    88,085.22x = 121,579.20 × 54,101.85
  4. Step 4: Simplify right side
    88,085.22x = 6,577,659,641.52
  5. Step 5: Solve for x
    x = 6,577,659,641.52/88,085.22
  6. Step 6: Final answer
    x = 74,673.82

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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.