Home / 52,487.20-78,680.40-17,408.80

Finding the Fourth Proportional to 52,487.20, 78,680.40 and 17,408.80

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Solution

The fourth proportional to 52,487.20, 78,680.40 and 17,408.80 is: 26,096.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,487.20 : 78,680.40 = 17,408.80 : x
  2. Step 2: Convert to fraction form
    52,487.20/78,680.40 = 17,408.80/x
  3. Step 3: Cross multiply
    52,487.20x = 78,680.40 × 17,408.80
  4. Step 4: Simplify right side
    52,487.20x = 1,369,731,347.52
  5. Step 5: Solve for x
    x = 1,369,731,347.52/52,487.20
  6. Step 6: Final answer
    x = 26,096.48

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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.