Home / 70,301.20-97,014.36-38,469.28

Finding the Fourth Proportional to 70,301.20, 97,014.36 and 38,469.28

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Solution

The fourth proportional to 70,301.20, 97,014.36 and 38,469.28 is: 53,086.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,301.20 : 97,014.36 = 38,469.28 : x
  2. Step 2: Convert to fraction form
    70,301.20/97,014.36 = 38,469.28/x
  3. Step 3: Cross multiply
    70,301.20x = 97,014.36 × 38,469.28
  4. Step 4: Simplify right side
    70,301.20x = 3,732,072,578.86
  5. Step 5: Solve for x
    x = 3,732,072,578.86/70,301.20
  6. Step 6: Final answer
    x = 53,086.90

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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.