Home / 45,729.90-68,638.05-28,233.90

Finding the Fourth Proportional to 45,729.90, 68,638.05 and 28,233.90

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Solution

The fourth proportional to 45,729.90, 68,638.05 and 28,233.90 is: 42,377.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,729.90 : 68,638.05 = 28,233.90 : x
  2. Step 2: Convert to fraction form
    45,729.90/68,638.05 = 28,233.90/x
  3. Step 3: Cross multiply
    45,729.90x = 68,638.05 × 28,233.90
  4. Step 4: Simplify right side
    45,729.90x = 1,937,919,839.90
  5. Step 5: Solve for x
    x = 1,937,919,839.90/45,729.90
  6. Step 6: Final answer
    x = 42,377.52

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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.