Home / 70,397.28-97,135.92-40,168.80

Finding the Fourth Proportional to 70,397.28, 97,135.92 and 40,168.80

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Solution

The fourth proportional to 70,397.28, 97,135.92 and 40,168.80 is: 55,425.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,397.28 : 97,135.92 = 40,168.80 : x
  2. Step 2: Convert to fraction form
    70,397.28/97,135.92 = 40,168.80/x
  3. Step 3: Cross multiply
    70,397.28x = 97,135.92 × 40,168.80
  4. Step 4: Simplify right side
    70,397.28x = 3,901,833,343.30
  5. Step 5: Solve for x
    x = 3,901,833,343.30/70,397.28
  6. Step 6: Final answer
    x = 55,425.91

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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.