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Finding the Fourth Proportional to 61,745.85, 85,208.17 and 34,887.79

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Solution

The fourth proportional to 61,745.85, 85,208.17 and 34,887.79 is: 48,144.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,745.85 : 85,208.17 = 34,887.79 : x
  2. Step 2: Convert to fraction form
    61,745.85/85,208.17 = 34,887.79/x
  3. Step 3: Cross multiply
    61,745.85x = 85,208.17 × 34,887.79
  4. Step 4: Simplify right side
    61,745.85x = 2,972,724,586.30
  5. Step 5: Solve for x
    x = 2,972,724,586.30/61,745.85
  6. Step 6: Final answer
    x = 48,144.52

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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.