Home / 70,439.72-97,209.20-38,608.62

Finding the Fourth Proportional to 70,439.72, 97,209.20 and 38,608.62

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Solution

The fourth proportional to 70,439.72, 97,209.20 and 38,608.62 is: 53,281.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,439.72 : 97,209.20 = 38,608.62 : x
  2. Step 2: Convert to fraction form
    70,439.72/97,209.20 = 38,608.62/x
  3. Step 3: Cross multiply
    70,439.72x = 97,209.20 × 38,608.62
  4. Step 4: Simplify right side
    70,439.72x = 3,753,113,063.30
  5. Step 5: Solve for x
    x = 3,753,113,063.30/70,439.72
  6. Step 6: Final answer
    x = 53,281.20

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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.