Home / 54,856.81-82,268.34-28,547.20

Finding the Fourth Proportional to 54,856.81, 82,268.34 and 28,547.20

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Solution

The fourth proportional to 54,856.81, 82,268.34 and 28,547.20 is: 42,812.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,856.81 : 82,268.34 = 28,547.20 : x
  2. Step 2: Convert to fraction form
    54,856.81/82,268.34 = 28,547.20/x
  3. Step 3: Cross multiply
    54,856.81x = 82,268.34 × 28,547.20
  4. Step 4: Simplify right side
    54,856.81x = 2,348,530,755.65
  5. Step 5: Solve for x
    x = 2,348,530,755.65/54,856.81
  6. Step 6: Final answer
    x = 42,812.02

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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.