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Finding the Fourth Proportional to 61,855.80, 85,365.12 and 34,999.44

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Solution

The fourth proportional to 61,855.80, 85,365.12 and 34,999.44 is: 48,301.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,855.80 : 85,365.12 = 34,999.44 : x
  2. Step 2: Convert to fraction form
    61,855.80/85,365.12 = 34,999.44/x
  3. Step 3: Cross multiply
    61,855.80x = 85,365.12 × 34,999.44
  4. Step 4: Simplify right side
    61,855.80x = 2,987,731,395.53
  5. Step 5: Solve for x
    x = 2,987,731,395.53/61,855.80
  6. Step 6: Final answer
    x = 48,301.56

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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.