Home / 87,003.16-120,072.68-48,762.52

Finding the Fourth Proportional to 87,003.16, 120,072.68 and 48,762.52

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Solution

The fourth proportional to 87,003.16, 120,072.68 and 48,762.52 is: 67,296.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,003.16 : 120,072.68 = 48,762.52 : x
  2. Step 2: Convert to fraction form
    87,003.16/120,072.68 = 48,762.52/x
  3. Step 3: Cross multiply
    87,003.16x = 120,072.68 × 48,762.52
  4. Step 4: Simplify right side
    87,003.16x = 5,855,046,459.95
  5. Step 5: Solve for x
    x = 5,855,046,459.95/87,003.16
  6. Step 6: Final answer
    x = 67,296.94

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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.