Home / 71,189.28-98,233.20-39,353.76

Finding the Fourth Proportional to 71,189.28, 98,233.20 and 39,353.76

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Solution

The fourth proportional to 71,189.28, 98,233.20 and 39,353.76 is: 54,303.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,189.28 : 98,233.20 = 39,353.76 : x
  2. Step 2: Convert to fraction form
    71,189.28/98,233.20 = 39,353.76/x
  3. Step 3: Cross multiply
    71,189.28x = 98,233.20 × 39,353.76
  4. Step 4: Simplify right side
    71,189.28x = 3,865,845,776.83
  5. Step 5: Solve for x
    x = 3,865,845,776.83/71,189.28
  6. Step 6: Final answer
    x = 54,303.76

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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.