Home / 87,628.69-131,390.40-34,257.10

Finding the Fourth Proportional to 87,628.69, 131,390.40 and 34,257.10

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Solution

The fourth proportional to 87,628.69, 131,390.40 and 34,257.10 is: 51,365.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,628.69 : 131,390.40 = 34,257.10 : x
  2. Step 2: Convert to fraction form
    87,628.69/131,390.40 = 34,257.10/x
  3. Step 3: Cross multiply
    87,628.69x = 131,390.40 × 34,257.10
  4. Step 4: Simplify right side
    87,628.69x = 4,501,053,925.49
  5. Step 5: Solve for x
    x = 4,501,053,925.49/87,628.69
  6. Step 6: Final answer
    x = 51,365.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.