Home / 92,685.06-139,022.10-45,281.88

Finding the Fourth Proportional to 92,685.06, 139,022.10 and 45,281.88

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Solution

The fourth proportional to 92,685.06, 139,022.10 and 45,281.88 is: 67,920.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,685.06 : 139,022.10 = 45,281.88 : x
  2. Step 2: Convert to fraction form
    92,685.06/139,022.10 = 45,281.88/x
  3. Step 3: Cross multiply
    92,685.06x = 139,022.10 × 45,281.88
  4. Step 4: Simplify right side
    92,685.06x = 6,295,182,049.55
  5. Step 5: Solve for x
    x = 6,295,182,049.55/92,685.06
  6. Step 6: Final answer
    x = 67,920.14

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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.