Home / 54,036.05-81,054-30,035.61

Finding the Fourth Proportional to 54,036.05, 81,054 and 30,035.61

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Solution

The fourth proportional to 54,036.05, 81,054 and 30,035.61 is: 45,053.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,036.05 : 81,054 = 30,035.61 : x
  2. Step 2: Convert to fraction form
    54,036.05/81,054 = 30,035.61/x
  3. Step 3: Cross multiply
    54,036.05x = 81,054 × 30,035.61
  4. Step 4: Simplify right side
    54,036.05x = 2,434,506,332.94
  5. Step 5: Solve for x
    x = 2,434,506,332.94/54,036.05
  6. Step 6: Final answer
    x = 45,053.38

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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.