Home / 70,721.08-97,593.98-38,889.90

Finding the Fourth Proportional to 70,721.08, 97,593.98 and 38,889.90

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Solution

The fourth proportional to 70,721.08, 97,593.98 and 38,889.90 is: 53,667.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,721.08 : 97,593.98 = 38,889.90 : x
  2. Step 2: Convert to fraction form
    70,721.08/97,593.98 = 38,889.90/x
  3. Step 3: Cross multiply
    70,721.08x = 97,593.98 × 38,889.90
  4. Step 4: Simplify right side
    70,721.08x = 3,795,420,122.80
  5. Step 5: Solve for x
    x = 3,795,420,122.80/70,721.08
  6. Step 6: Final answer
    x = 53,667.45

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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.