Home / 115,023.48-172,508.40-43,920.01

Finding the Fourth Proportional to 115,023.48, 172,508.40 and 43,920.01

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Solution

The fourth proportional to 115,023.48, 172,508.40 and 43,920.01 is: 65,869.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,023.48 : 172,508.40 = 43,920.01 : x
  2. Step 2: Convert to fraction form
    115,023.48/172,508.40 = 43,920.01/x
  3. Step 3: Cross multiply
    115,023.48x = 172,508.40 × 43,920.01
  4. Step 4: Simplify right side
    115,023.48x = 7,576,570,868.72
  5. Step 5: Solve for x
    x = 7,576,570,868.72/115,023.48
  6. Step 6: Final answer
    x = 65,869.77

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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.