Home / 85,717.07-128,565.37-22,542.12

Finding the Fourth Proportional to 85,717.07, 128,565.37 and 22,542.12

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Solution

The fourth proportional to 85,717.07, 128,565.37 and 22,542.12 is: 33,810.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,717.07 : 128,565.37 = 22,542.12 : x
  2. Step 2: Convert to fraction form
    85,717.07/128,565.37 = 22,542.12/x
  3. Step 3: Cross multiply
    85,717.07x = 128,565.37 × 22,542.12
  4. Step 4: Simplify right side
    85,717.07x = 2,898,135,355.56
  5. Step 5: Solve for x
    x = 2,898,135,355.56/85,717.07
  6. Step 6: Final answer
    x = 33,810.48

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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.