Home / 87,464.81-120,712.07-49,238.69

Finding the Fourth Proportional to 87,464.81, 120,712.07 and 49,238.69

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Solution

The fourth proportional to 87,464.81, 120,712.07 and 49,238.69 is: 67,955.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,464.81 : 120,712.07 = 49,238.69 : x
  2. Step 2: Convert to fraction form
    87,464.81/120,712.07 = 49,238.69/x
  3. Step 3: Cross multiply
    87,464.81x = 120,712.07 × 49,238.69
  4. Step 4: Simplify right side
    87,464.81x = 5,943,703,713.52
  5. Step 5: Solve for x
    x = 5,943,703,713.52/87,464.81
  6. Step 6: Final answer
    x = 67,955.37

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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.