Home / 56,669.27-78,201.12-31,174.02

Finding the Fourth Proportional to 56,669.27, 78,201.12 and 31,174.02

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Solution

The fourth proportional to 56,669.27, 78,201.12 and 31,174.02 is: 43,018.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,669.27 : 78,201.12 = 31,174.02 : x
  2. Step 2: Convert to fraction form
    56,669.27/78,201.12 = 31,174.02/x
  3. Step 3: Cross multiply
    56,669.27x = 78,201.12 × 31,174.02
  4. Step 4: Simplify right side
    56,669.27x = 2,437,843,278.90
  5. Step 5: Solve for x
    x = 2,437,843,278.90/56,669.27
  6. Step 6: Final answer
    x = 43,018.79

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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.