Home / 54,628.91-75,389.30-30,756.43

Finding the Fourth Proportional to 54,628.91, 75,389.30 and 30,756.43

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Solution

The fourth proportional to 54,628.91, 75,389.30 and 30,756.43 is: 42,444.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,628.91 : 75,389.30 = 30,756.43 : x
  2. Step 2: Convert to fraction form
    54,628.91/75,389.30 = 30,756.43/x
  3. Step 3: Cross multiply
    54,628.91x = 75,389.30 × 30,756.43
  4. Step 4: Simplify right side
    54,628.91x = 2,318,705,728.20
  5. Step 5: Solve for x
    x = 2,318,705,728.20/54,628.91
  6. Step 6: Final answer
    x = 42,444.66

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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.