Home / 54,585.60-75,322.78-30,711.76

Finding the Fourth Proportional to 54,585.60, 75,322.78 and 30,711.76

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Solution

The fourth proportional to 54,585.60, 75,322.78 and 30,711.76 is: 42,379.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,585.60 : 75,322.78 = 30,711.76 : x
  2. Step 2: Convert to fraction form
    54,585.60/75,322.78 = 30,711.76/x
  3. Step 3: Cross multiply
    54,585.60x = 75,322.78 × 30,711.76
  4. Step 4: Simplify right side
    54,585.60x = 2,313,295,141.89
  5. Step 5: Solve for x
    x = 2,313,295,141.89/54,585.60
  6. Step 6: Final answer
    x = 42,379.22

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1.5x scale

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.