Home / 68,631.51-94,715.72-39,951.75

Finding the Fourth Proportional to 68,631.51, 94,715.72 and 39,951.75

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Solution

The fourth proportional to 68,631.51, 94,715.72 and 39,951.75 is: 55,135.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,631.51 : 94,715.72 = 39,951.75 : x
  2. Step 2: Convert to fraction form
    68,631.51/94,715.72 = 39,951.75/x
  3. Step 3: Cross multiply
    68,631.51x = 94,715.72 × 39,951.75
  4. Step 4: Simplify right side
    68,631.51x = 3,784,058,566.75
  5. Step 5: Solve for x
    x = 3,784,058,566.75/68,631.51
  6. Step 6: Final answer
    x = 55,135.88

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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.