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Finding the Fourth Proportional to 61,610.79, 85,016.55 and 45,486.70

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Solution

The fourth proportional to 61,610.79, 85,016.55 and 45,486.70 is: 62,766.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,610.79 : 85,016.55 = 45,486.70 : x
  2. Step 2: Convert to fraction form
    61,610.79/85,016.55 = 45,486.70/x
  3. Step 3: Cross multiply
    61,610.79x = 85,016.55 × 45,486.70
  4. Step 4: Simplify right side
    61,610.79x = 3,867,122,262.92
  5. Step 5: Solve for x
    x = 3,867,122,262.92/61,610.79
  6. Step 6: Final answer
    x = 62,766.96

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1.5x scale

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.