Home / 57,149.83-85,693.49-45,379.21

Finding the Fourth Proportional to 57,149.83, 85,693.49 and 45,379.21

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Solution

The fourth proportional to 57,149.83, 85,693.49 and 45,379.21 is: 68,044.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,149.83 : 85,693.49 = 45,379.21 : x
  2. Step 2: Convert to fraction form
    57,149.83/85,693.49 = 45,379.21/x
  3. Step 3: Cross multiply
    57,149.83x = 85,693.49 × 45,379.21
  4. Step 4: Simplify right side
    57,149.83x = 3,888,703,013.82
  5. Step 5: Solve for x
    x = 3,888,703,013.82/57,149.83
  6. Step 6: Final answer
    x = 68,044.00

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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.