Home / 61,961.28-92,956.18-21,978.14

Finding the Fourth Proportional to 61,961.28, 92,956.18 and 21,978.14

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Solution

The fourth proportional to 61,961.28, 92,956.18 and 21,978.14 is: 32,972.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,961.28 : 92,956.18 = 21,978.14 : x
  2. Step 2: Convert to fraction form
    61,961.28/92,956.18 = 21,978.14/x
  3. Step 3: Cross multiply
    61,961.28x = 92,956.18 × 21,978.14
  4. Step 4: Simplify right side
    61,961.28x = 2,043,003,937.91
  5. Step 5: Solve for x
    x = 2,043,003,937.91/61,961.28
  6. Step 6: Final answer
    x = 32,972.27

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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.