Home / 115,541.76-159,431.94-64,548.21

Finding the Fourth Proportional to 115,541.76, 159,431.94 and 64,548.21

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Solution

The fourth proportional to 115,541.76, 159,431.94 and 64,548.21 is: 89,067.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,541.76 : 159,431.94 = 64,548.21 : x
  2. Step 2: Convert to fraction form
    115,541.76/159,431.94 = 64,548.21/x
  3. Step 3: Cross multiply
    115,541.76x = 159,431.94 × 64,548.21
  4. Step 4: Simplify right side
    115,541.76x = 10,291,046,343.83
  5. Step 5: Solve for x
    x = 10,291,046,343.83/115,541.76
  6. Step 6: Final answer
    x = 89,067.77

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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.