Home / 115,049.10-172,428.24-51,801.87

Finding the Fourth Proportional to 115,049.10, 172,428.24 and 51,801.87

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Solution

The fourth proportional to 115,049.10, 172,428.24 and 51,801.87 is: 77,637.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,049.10 : 172,428.24 = 51,801.87 : x
  2. Step 2: Convert to fraction form
    115,049.10/172,428.24 = 51,801.87/x
  3. Step 3: Cross multiply
    115,049.10x = 172,428.24 × 51,801.87
  4. Step 4: Simplify right side
    115,049.10x = 8,932,105,272.81
  5. Step 5: Solve for x
    x = 8,932,105,272.81/115,049.10
  6. Step 6: Final answer
    x = 77,637.33

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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.