Home / 70,431.28-97,182.84-40,202.80

Finding the Fourth Proportional to 70,431.28, 97,182.84 and 40,202.80

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Solution

The fourth proportional to 70,431.28, 97,182.84 and 40,202.80 is: 55,472.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,431.28 : 97,182.84 = 40,202.80 : x
  2. Step 2: Convert to fraction form
    70,431.28/97,182.84 = 40,202.80/x
  3. Step 3: Cross multiply
    70,431.28x = 97,182.84 × 40,202.80
  4. Step 4: Simplify right side
    70,431.28x = 3,907,022,279.95
  5. Step 5: Solve for x
    x = 3,907,022,279.95/70,431.28
  6. Step 6: Final answer
    x = 55,472.83

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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.