Home / 70,328.11-97,049.10-38,490.88

Finding the Fourth Proportional to 70,328.11, 97,049.10 and 38,490.88

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Solution

The fourth proportional to 70,328.11, 97,049.10 and 38,490.88 is: 53,115.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,328.11 : 97,049.10 = 38,490.88 : x
  2. Step 2: Convert to fraction form
    70,328.11/97,049.10 = 38,490.88/x
  3. Step 3: Cross multiply
    70,328.11x = 97,049.10 × 38,490.88
  4. Step 4: Simplify right side
    70,328.11x = 3,735,505,262.21
  5. Step 5: Solve for x
    x = 3,735,505,262.21/70,328.11
  6. Step 6: Final answer
    x = 53,115.39

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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.