Home / 71,005.24-98,401.45-70,003

Finding the Fourth Proportional to 71,005.24, 98,401.45 and 70,003

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Solution

The fourth proportional to 71,005.24, 98,401.45 and 70,003 is: 97,012.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,005.24 : 98,401.45 = 70,003 : x
  2. Step 2: Convert to fraction form
    71,005.24/98,401.45 = 70,003/x
  3. Step 3: Cross multiply
    71,005.24x = 98,401.45 × 70,003
  4. Step 4: Simplify right side
    71,005.24x = 6,888,396,704.35
  5. Step 5: Solve for x
    x = 6,888,396,704.35/71,005.24
  6. Step 6: Final answer
    x = 97,012.51

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.