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Finding the Fourth Proportional to 88,120.91, 121,608.91 and 52,311.06

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Solution

The fourth proportional to 88,120.91, 121,608.91 and 52,311.06 is: 72,190.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,120.91 : 121,608.91 = 52,311.06 : x
  2. Step 2: Convert to fraction form
    88,120.91/121,608.91 = 52,311.06/x
  3. Step 3: Cross multiply
    88,120.91x = 121,608.91 × 52,311.06
  4. Step 4: Simplify right side
    88,120.91x = 6,361,490,248.72
  5. Step 5: Solve for x
    x = 6,361,490,248.72/88,120.91
  6. Step 6: Final answer
    x = 72,190.48

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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.