Home / 56,885.20-85,212.60-39,374.80

Finding the Fourth Proportional to 56,885.20, 85,212.60 and 39,374.80

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Solution

The fourth proportional to 56,885.20, 85,212.60 and 39,374.80 is: 58,982.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,885.20 : 85,212.60 = 39,374.80 : x
  2. Step 2: Convert to fraction form
    56,885.20/85,212.60 = 39,374.80/x
  3. Step 3: Cross multiply
    56,885.20x = 85,212.60 × 39,374.80
  4. Step 4: Simplify right side
    56,885.20x = 3,355,229,082.48
  5. Step 5: Solve for x
    x = 3,355,229,082.48/56,885.20
  6. Step 6: Final answer
    x = 58,982.46

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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.