Home / 70,761.13-97,651.85-38,930.09

Finding the Fourth Proportional to 70,761.13, 97,651.85 and 38,930.09

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Solution

The fourth proportional to 70,761.13, 97,651.85 and 38,930.09 is: 53,724.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,761.13 : 97,651.85 = 38,930.09 : x
  2. Step 2: Convert to fraction form
    70,761.13/97,651.85 = 38,930.09/x
  3. Step 3: Cross multiply
    70,761.13x = 97,651.85 × 38,930.09
  4. Step 4: Simplify right side
    70,761.13x = 3,801,594,626.26
  5. Step 5: Solve for x
    x = 3,801,594,626.26/70,761.13
  6. Step 6: Final answer
    x = 53,724.34

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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.