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Finding the Fourth Proportional to 61,777.53, 85,189.31 and 52,854.57

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Solution

The fourth proportional to 61,777.53, 85,189.31 and 52,854.57 is: 72,884.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,777.53 : 85,189.31 = 52,854.57 : x
  2. Step 2: Convert to fraction form
    61,777.53/85,189.31 = 52,854.57/x
  3. Step 3: Cross multiply
    61,777.53x = 85,189.31 × 52,854.57
  4. Step 4: Simplify right side
    61,777.53x = 4,502,644,348.65
  5. Step 5: Solve for x
    x = 4,502,644,348.65/61,777.53
  6. Step 6: Final answer
    x = 72,884.82

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