Home / 54,585.89-75,323.16-30,712.05

Finding the Fourth Proportional to 54,585.89, 75,323.16 and 30,712.05

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Solution

The fourth proportional to 54,585.89, 75,323.16 and 30,712.05 is: 42,379.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,585.89 : 75,323.16 = 30,712.05 : x
  2. Step 2: Convert to fraction form
    54,585.89/75,323.16 = 30,712.05/x
  3. Step 3: Cross multiply
    54,585.89x = 75,323.16 × 30,712.05
  4. Step 4: Simplify right side
    54,585.89x = 2,313,328,656.08
  5. Step 5: Solve for x
    x = 2,313,328,656.08/54,585.89
  6. Step 6: Final answer
    x = 42,379.61

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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.