Home / 45,300.90-67,951.35-43,381.20

Finding the Fourth Proportional to 45,300.90, 67,951.35 and 43,381.20

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Solution

The fourth proportional to 45,300.90, 67,951.35 and 43,381.20 is: 65,071.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,300.90 : 67,951.35 = 43,381.20 : x
  2. Step 2: Convert to fraction form
    45,300.90/67,951.35 = 43,381.20/x
  3. Step 3: Cross multiply
    45,300.90x = 67,951.35 × 43,381.20
  4. Step 4: Simplify right side
    45,300.90x = 2,947,811,104.62
  5. Step 5: Solve for x
    x = 2,947,811,104.62/45,300.90
  6. Step 6: Final answer
    x = 65,071.80

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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.