Home / 70,200.08-96,876.09-39,988.20

Finding the Fourth Proportional to 70,200.08, 96,876.09 and 39,988.20

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Solution

The fourth proportional to 70,200.08, 96,876.09 and 39,988.20 is: 55,183.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,200.08 : 96,876.09 = 39,988.20 : x
  2. Step 2: Convert to fraction form
    70,200.08/96,876.09 = 39,988.20/x
  3. Step 3: Cross multiply
    70,200.08x = 96,876.09 × 39,988.20
  4. Step 4: Simplify right side
    70,200.08x = 3,873,900,462.14
  5. Step 5: Solve for x
    x = 3,873,900,462.14/70,200.08
  6. Step 6: Final answer
    x = 55,183.71

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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.