Home / 81,372.50-122,058.78-39,244.74

Finding the Fourth Proportional to 81,372.50, 122,058.78 and 39,244.74

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Solution

The fourth proportional to 81,372.50, 122,058.78 and 39,244.74 is: 58,867.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,372.50 : 122,058.78 = 39,244.74 : x
  2. Step 2: Convert to fraction form
    81,372.50/122,058.78 = 39,244.74/x
  3. Step 3: Cross multiply
    81,372.50x = 122,058.78 × 39,244.74
  4. Step 4: Simplify right side
    81,372.50x = 4,790,164,889.59
  5. Step 5: Solve for x
    x = 4,790,164,889.59/81,372.50
  6. Step 6: Final answer
    x = 58,867.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.