Home / 54,401.11-81,552.45-19,332.56

Finding the Fourth Proportional to 54,401.11, 81,552.45 and 19,332.56

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Solution

The fourth proportional to 54,401.11, 81,552.45 and 19,332.56 is: 28,981.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,401.11 : 81,552.45 = 19,332.56 : x
  2. Step 2: Convert to fraction form
    54,401.11/81,552.45 = 19,332.56/x
  3. Step 3: Cross multiply
    54,401.11x = 81,552.45 × 19,332.56
  4. Step 4: Simplify right side
    54,401.11x = 1,576,617,632.77
  5. Step 5: Solve for x
    x = 1,576,617,632.77/54,401.11
  6. Step 6: Final answer
    x = 28,981.35

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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.