Home / 115,528.29-159,424.04-64,540.82

Finding the Fourth Proportional to 115,528.29, 159,424.04 and 64,540.82

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Solution

The fourth proportional to 115,528.29, 159,424.04 and 64,540.82 is: 89,063.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,528.29 : 159,424.04 = 64,540.82 : x
  2. Step 2: Convert to fraction form
    115,528.29/159,424.04 = 64,540.82/x
  3. Step 3: Cross multiply
    115,528.29x = 159,424.04 × 64,540.82
  4. Step 4: Simplify right side
    115,528.29x = 10,289,357,149.49
  5. Step 5: Solve for x
    x = 10,289,357,149.49/115,528.29
  6. Step 6: Final answer
    x = 89,063.53

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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.