Home / 53,939.85-74,436.75-31,291.98

Finding the Fourth Proportional to 53,939.85, 74,436.75 and 31,291.98

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Solution

The fourth proportional to 53,939.85, 74,436.75 and 31,291.98 is: 43,182.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,939.85 : 74,436.75 = 31,291.98 : x
  2. Step 2: Convert to fraction form
    53,939.85/74,436.75 = 31,291.98/x
  3. Step 3: Cross multiply
    53,939.85x = 74,436.75 × 31,291.98
  4. Step 4: Simplify right side
    53,939.85x = 2,329,273,292.27
  5. Step 5: Solve for x
    x = 2,329,273,292.27/53,939.85
  6. Step 6: Final answer
    x = 43,182.79

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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.