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Finding the Fourth Proportional to 61,378.85, 84,335.73 and 48,781.73

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Solution

The fourth proportional to 61,378.85, 84,335.73 and 48,781.73 is: 67,027.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,378.85 : 84,335.73 = 48,781.73 : x
  2. Step 2: Convert to fraction form
    61,378.85/84,335.73 = 48,781.73/x
  3. Step 3: Cross multiply
    61,378.85x = 84,335.73 × 48,781.73
  4. Step 4: Simplify right side
    61,378.85x = 4,114,042,388.53
  5. Step 5: Solve for x
    x = 4,114,042,388.53/61,378.85
  6. Step 6: Final answer
    x = 67,027.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.