Home / 54,849.85-75,694.86-30,980.11

Finding the Fourth Proportional to 54,849.85, 75,694.86 and 30,980.11

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Solution

The fourth proportional to 54,849.85, 75,694.86 and 30,980.11 is: 42,753.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,849.85 : 75,694.86 = 30,980.11 : x
  2. Step 2: Convert to fraction form
    54,849.85/75,694.86 = 30,980.11/x
  3. Step 3: Cross multiply
    54,849.85x = 75,694.86 × 30,980.11
  4. Step 4: Simplify right side
    54,849.85x = 2,345,035,089.23
  5. Step 5: Solve for x
    x = 2,345,035,089.23/54,849.85
  6. Step 6: Final answer
    x = 42,753.72

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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.