Home / 61,663.28-92,507.88-20,139.44

Finding the Fourth Proportional to 61,663.28, 92,507.88 and 20,139.44

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Solution

The fourth proportional to 61,663.28, 92,507.88 and 20,139.44 is: 30,213.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,663.28 : 92,507.88 = 20,139.44 : x
  2. Step 2: Convert to fraction form
    61,663.28/92,507.88 = 20,139.44/x
  3. Step 3: Cross multiply
    61,663.28x = 92,507.88 × 20,139.44
  4. Step 4: Simplify right side
    61,663.28x = 1,863,056,898.79
  5. Step 5: Solve for x
    x = 1,863,056,898.79/61,663.28
  6. Step 6: Final answer
    x = 30,213.39

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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.