Home / 88,219.79-121,729.60-52,408.88

Finding the Fourth Proportional to 88,219.79, 121,729.60 and 52,408.88

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Solution

The fourth proportional to 88,219.79, 121,729.60 and 52,408.88 is: 72,316.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,219.79 : 121,729.60 = 52,408.88 : x
  2. Step 2: Convert to fraction form
    88,219.79/121,729.60 = 52,408.88/x
  3. Step 3: Cross multiply
    88,219.79x = 121,729.60 × 52,408.88
  4. Step 4: Simplify right side
    88,219.79x = 6,379,711,998.85
  5. Step 5: Solve for x
    x = 6,379,711,998.85/88,219.79
  6. Step 6: Final answer
    x = 72,316.11

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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.