Home / 63,290.25-87,351.48-38,139.75

Finding the Fourth Proportional to 63,290.25, 87,351.48 and 38,139.75

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Solution

The fourth proportional to 63,290.25, 87,351.48 and 38,139.75 is: 52,639.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,290.25 : 87,351.48 = 38,139.75 : x
  2. Step 2: Convert to fraction form
    63,290.25/87,351.48 = 38,139.75/x
  3. Step 3: Cross multiply
    63,290.25x = 87,351.48 × 38,139.75
  4. Step 4: Simplify right side
    63,290.25x = 3,331,563,609.33
  5. Step 5: Solve for x
    x = 3,331,563,609.33/63,290.25
  6. Step 6: Final answer
    x = 52,639.44

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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.