Home / 61,867.98-85,414.48-40,683.78

Finding the Fourth Proportional to 61,867.98, 85,414.48 and 40,683.78

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Solution

The fourth proportional to 61,867.98, 85,414.48 and 40,683.78 is: 56,167.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,867.98 : 85,414.48 = 40,683.78 : x
  2. Step 2: Convert to fraction form
    61,867.98/85,414.48 = 40,683.78/x
  3. Step 3: Cross multiply
    61,867.98x = 85,414.48 × 40,683.78
  4. Step 4: Simplify right side
    61,867.98x = 3,474,983,913.13
  5. Step 5: Solve for x
    x = 3,474,983,913.13/61,867.98
  6. Step 6: Final answer
    x = 56,167.73

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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.