Home / 57,240.18-78,992.10-31,747.05

Finding the Fourth Proportional to 57,240.18, 78,992.10 and 31,747.05

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Solution

The fourth proportional to 57,240.18, 78,992.10 and 31,747.05 is: 43,811.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,240.18 : 78,992.10 = 31,747.05 : x
  2. Step 2: Convert to fraction form
    57,240.18/78,992.10 = 31,747.05/x
  3. Step 3: Cross multiply
    57,240.18x = 78,992.10 × 31,747.05
  4. Step 4: Simplify right side
    57,240.18x = 2,507,766,148.31
  5. Step 5: Solve for x
    x = 2,507,766,148.31/57,240.18
  6. Step 6: Final answer
    x = 43,811.29

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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.