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Finding the Fourth Proportional to 73,261.67, 109,892.70 and 20,671.11

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Solution

The fourth proportional to 73,261.67, 109,892.70 and 20,671.11 is: 31,006.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,261.67 : 109,892.70 = 20,671.11 : x
  2. Step 2: Convert to fraction form
    73,261.67/109,892.70 = 20,671.11/x
  3. Step 3: Cross multiply
    73,261.67x = 109,892.70 × 20,671.11
  4. Step 4: Simplify right side
    73,261.67x = 2,271,604,089.90
  5. Step 5: Solve for x
    x = 2,271,604,089.90/73,261.67
  6. Step 6: Final answer
    x = 31,006.72

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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.