Home / 87,384.12-120,603.03-53,412.18

Finding the Fourth Proportional to 87,384.12, 120,603.03 and 53,412.18

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Solution

The fourth proportional to 87,384.12, 120,603.03 and 53,412.18 is: 73,716.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,384.12 : 120,603.03 = 53,412.18 : x
  2. Step 2: Convert to fraction form
    87,384.12/120,603.03 = 53,412.18/x
  3. Step 3: Cross multiply
    87,384.12x = 120,603.03 × 53,412.18
  4. Step 4: Simplify right side
    87,384.12x = 6,441,669,876.83
  5. Step 5: Solve for x
    x = 6,441,669,876.83/87,384.12
  6. Step 6: Final answer
    x = 73,716.71

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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.