Home / 87,018.03-120,082.05-51,210

Finding the Fourth Proportional to 87,018.03, 120,082.05 and 51,210

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Solution

The fourth proportional to 87,018.03, 120,082.05 and 51,210 is: 70,668.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,018.03 : 120,082.05 = 51,210 : x
  2. Step 2: Convert to fraction form
    87,018.03/120,082.05 = 51,210/x
  3. Step 3: Cross multiply
    87,018.03x = 120,082.05 × 51,210
  4. Step 4: Simplify right side
    87,018.03x = 6,149,401,780.50
  5. Step 5: Solve for x
    x = 6,149,401,780.50/87,018.03
  6. Step 6: Final answer
    x = 70,668.13

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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.