Home / 54,581.76-75,323.52-30,708.48

Finding the Fourth Proportional to 54,581.76, 75,323.52 and 30,708.48

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Solution

The fourth proportional to 54,581.76, 75,323.52 and 30,708.48 is: 42,378.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,581.76 : 75,323.52 = 30,708.48 : x
  2. Step 2: Convert to fraction form
    54,581.76/75,323.52 = 30,708.48/x
  3. Step 3: Cross multiply
    54,581.76x = 75,323.52 × 30,708.48
  4. Step 4: Simplify right side
    54,581.76x = 2,313,070,807.45
  5. Step 5: Solve for x
    x = 2,313,070,807.45/54,581.76
  6. Step 6: Final answer
    x = 42,378.09

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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.