Home / 61,869.12-92,803.68-15,121.92

Finding the Fourth Proportional to 61,869.12, 92,803.68 and 15,121.92

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Solution

The fourth proportional to 61,869.12, 92,803.68 and 15,121.92 is: 22,682.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,869.12 : 92,803.68 = 15,121.92 : x
  2. Step 2: Convert to fraction form
    61,869.12/92,803.68 = 15,121.92/x
  3. Step 3: Cross multiply
    61,869.12x = 92,803.68 × 15,121.92
  4. Step 4: Simplify right side
    61,869.12x = 1,403,369,824.67
  5. Step 5: Solve for x
    x = 1,403,369,824.67/61,869.12
  6. Step 6: Final answer
    x = 22,682.88

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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.