Home / 54,947.18-75,822-31,073.78

Finding the Fourth Proportional to 54,947.18, 75,822 and 31,073.78

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Solution

The fourth proportional to 54,947.18, 75,822 and 31,073.78 is: 42,878.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,947.18 : 75,822 = 31,073.78 : x
  2. Step 2: Convert to fraction form
    54,947.18/75,822 = 31,073.78/x
  3. Step 3: Cross multiply
    54,947.18x = 75,822 × 31,073.78
  4. Step 4: Simplify right side
    54,947.18x = 2,356,076,147.16
  5. Step 5: Solve for x
    x = 2,356,076,147.16/54,947.18
  6. Step 6: Final answer
    x = 42,878.93

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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.