Home / 61,842.12-85,375.20-48,384.78

Finding the Fourth Proportional to 61,842.12, 85,375.20 and 48,384.78

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Solution

The fourth proportional to 61,842.12, 85,375.20 and 48,384.78 is: 66,796.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,842.12 : 85,375.20 = 48,384.78 : x
  2. Step 2: Convert to fraction form
    61,842.12/85,375.20 = 48,384.78/x
  3. Step 3: Cross multiply
    61,842.12x = 85,375.20 × 48,384.78
  4. Step 4: Simplify right side
    61,842.12x = 4,130,860,269.46
  5. Step 5: Solve for x
    x = 4,130,860,269.46/61,842.12
  6. Step 6: Final answer
    x = 66,796.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.