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Finding the Fourth Proportional to 72,734.88, 109,102.44 and 22,818.91

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Solution

The fourth proportional to 72,734.88, 109,102.44 and 22,818.91 is: 34,228.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,734.88 : 109,102.44 = 22,818.91 : x
  2. Step 2: Convert to fraction form
    72,734.88/109,102.44 = 22,818.91/x
  3. Step 3: Cross multiply
    72,734.88x = 109,102.44 × 22,818.91
  4. Step 4: Simplify right side
    72,734.88x = 2,489,598,486.38
  5. Step 5: Solve for x
    x = 2,489,598,486.38/72,734.88
  6. Step 6: Final answer
    x = 34,228.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.