Home / 92,821.20-139,231.80-22,699.60

Finding the Fourth Proportional to 92,821.20, 139,231.80 and 22,699.60

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Solution

The fourth proportional to 92,821.20, 139,231.80 and 22,699.60 is: 34,049.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,821.20 : 139,231.80 = 22,699.60 : x
  2. Step 2: Convert to fraction form
    92,821.20/139,231.80 = 22,699.60/x
  3. Step 3: Cross multiply
    92,821.20x = 139,231.80 × 22,699.60
  4. Step 4: Simplify right side
    92,821.20x = 3,160,506,167.28
  5. Step 5: Solve for x
    x = 3,160,506,167.28/92,821.20
  6. Step 6: Final answer
    x = 34,049.40

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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.