Home / 62,781.15-94,172.50-18,408.78

Finding the Fourth Proportional to 62,781.15, 94,172.50 and 18,408.78

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Solution

The fourth proportional to 62,781.15, 94,172.50 and 18,408.78 is: 27,613.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,781.15 : 94,172.50 = 18,408.78 : x
  2. Step 2: Convert to fraction form
    62,781.15/94,172.50 = 18,408.78/x
  3. Step 3: Cross multiply
    62,781.15x = 94,172.50 × 18,408.78
  4. Step 4: Simplify right side
    62,781.15x = 1,733,600,834.55
  5. Step 5: Solve for x
    x = 1,733,600,834.55/62,781.15
  6. Step 6: Final answer
    x = 27,613.40

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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.