Home / 61,397.20-92,065.56-19,838.80

Finding the Fourth Proportional to 61,397.20, 92,065.56 and 19,838.80

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Solution

The fourth proportional to 61,397.20, 92,065.56 and 19,838.80 is: 29,748.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,397.20 : 92,065.56 = 19,838.80 : x
  2. Step 2: Convert to fraction form
    61,397.20/92,065.56 = 19,838.80/x
  3. Step 3: Cross multiply
    61,397.20x = 92,065.56 × 19,838.80
  4. Step 4: Simplify right side
    61,397.20x = 1,826,470,231.73
  5. Step 5: Solve for x
    x = 1,826,470,231.73/61,397.20
  6. Step 6: Final answer
    x = 29,748.43

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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.