Home / 55,141.90-82,734.45-21,856.30

Finding the Fourth Proportional to 55,141.90, 82,734.45 and 21,856.30

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Solution

The fourth proportional to 55,141.90, 82,734.45 and 21,856.30 is: 32,793.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,141.90 : 82,734.45 = 21,856.30 : x
  2. Step 2: Convert to fraction form
    55,141.90/82,734.45 = 21,856.30/x
  3. Step 3: Cross multiply
    55,141.90x = 82,734.45 × 21,856.30
  4. Step 4: Simplify right side
    55,141.90x = 1,808,268,959.54
  5. Step 5: Solve for x
    x = 1,808,268,959.54/55,141.90
  6. Step 6: Final answer
    x = 32,793.01

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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.