Home / 54,939.88-75,816.18-31,065.76

Finding the Fourth Proportional to 54,939.88, 75,816.18 and 31,065.76

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Solution

The fourth proportional to 54,939.88, 75,816.18 and 31,065.76 is: 42,870.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,939.88 : 75,816.18 = 31,065.76 : x
  2. Step 2: Convert to fraction form
    54,939.88/75,816.18 = 31,065.76/x
  3. Step 3: Cross multiply
    54,939.88x = 75,816.18 × 31,065.76
  4. Step 4: Simplify right side
    54,939.88x = 2,355,287,252.00
  5. Step 5: Solve for x
    x = 2,355,287,252.00/54,939.88
  6. Step 6: Final answer
    x = 42,870.27

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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.