Home / 53,378.32-80,041-31,197.28

Finding the Fourth Proportional to 53,378.32, 80,041 and 31,197.28

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Solution

The fourth proportional to 53,378.32, 80,041 and 31,197.28 is: 46,780.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,378.32 : 80,041 = 31,197.28 : x
  2. Step 2: Convert to fraction form
    53,378.32/80,041 = 31,197.28/x
  3. Step 3: Cross multiply
    53,378.32x = 80,041 × 31,197.28
  4. Step 4: Simplify right side
    53,378.32x = 2,497,061,488.48
  5. Step 5: Solve for x
    x = 2,497,061,488.48/53,378.32
  6. Step 6: Final answer
    x = 46,780.44

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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.