Home / 87,054.29-119,828.90-76,273.75

Finding the Fourth Proportional to 87,054.29, 119,828.90 and 76,273.75

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Solution

The fourth proportional to 87,054.29, 119,828.90 and 76,273.75 is: 104,989.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,054.29 : 119,828.90 = 76,273.75 : x
  2. Step 2: Convert to fraction form
    87,054.29/119,828.90 = 76,273.75/x
  3. Step 3: Cross multiply
    87,054.29x = 119,828.90 × 76,273.75
  4. Step 4: Simplify right side
    87,054.29x = 9,139,799,227.81
  5. Step 5: Solve for x
    x = 9,139,799,227.81/87,054.29
  6. Step 6: Final answer
    x = 104,989.65

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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.