Home / 92,541.20-138,811.80-30,211.70

Finding the Fourth Proportional to 92,541.20, 138,811.80 and 30,211.70

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Solution

The fourth proportional to 92,541.20, 138,811.80 and 30,211.70 is: 45,317.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,541.20 : 138,811.80 = 30,211.70 : x
  2. Step 2: Convert to fraction form
    92,541.20/138,811.80 = 30,211.70/x
  3. Step 3: Cross multiply
    92,541.20x = 138,811.80 × 30,211.70
  4. Step 4: Simplify right side
    92,541.20x = 4,193,739,764.00
  5. Step 5: Solve for x
    x = 4,193,739,764.00/92,541.20
  6. Step 6: Final answer
    x = 45,317.54

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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.