Home / 54,891.20-82,371.44-28,614.40

Finding the Fourth Proportional to 54,891.20, 82,371.44 and 28,614.40

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Solution

The fourth proportional to 54,891.20, 82,371.44 and 28,614.40 is: 42,939.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,891.20 : 82,371.44 = 28,614.40 : x
  2. Step 2: Convert to fraction form
    54,891.20/82,371.44 = 28,614.40/x
  3. Step 3: Cross multiply
    54,891.20x = 82,371.44 × 28,614.40
  4. Step 4: Simplify right side
    54,891.20x = 2,357,009,332.74
  5. Step 5: Solve for x
    x = 2,357,009,332.74/54,891.20
  6. Step 6: Final answer
    x = 42,939.66

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1.5x scale

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.