Home / 62,275.75-85,979.42-39,958.63

Finding the Fourth Proportional to 62,275.75, 85,979.42 and 39,958.63

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Solution

The fourth proportional to 62,275.75, 85,979.42 and 39,958.63 is: 55,167.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,275.75 : 85,979.42 = 39,958.63 : x
  2. Step 2: Convert to fraction form
    62,275.75/85,979.42 = 39,958.63/x
  3. Step 3: Cross multiply
    62,275.75x = 85,979.42 × 39,958.63
  4. Step 4: Simplify right side
    62,275.75x = 3,435,619,631.60
  5. Step 5: Solve for x
    x = 3,435,619,631.60/62,275.75
  6. Step 6: Final answer
    x = 55,167.86

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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.