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Finding the Fourth Proportional to 62,138.32, 85,723.59 and 41,987.84

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Solution

The fourth proportional to 62,138.32, 85,723.59 and 41,987.84 is: 57,924.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,138.32 : 85,723.59 = 41,987.84 : x
  2. Step 2: Convert to fraction form
    62,138.32/85,723.59 = 41,987.84/x
  3. Step 3: Cross multiply
    62,138.32x = 85,723.59 × 41,987.84
  4. Step 4: Simplify right side
    62,138.32x = 3,599,348,381.15
  5. Step 5: Solve for x
    x = 3,599,348,381.15/62,138.32
  6. Step 6: Final answer
    x = 57,924.78

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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.