Home / 57,204.83-78,947.36-31,719.20

Finding the Fourth Proportional to 57,204.83, 78,947.36 and 31,719.20

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Solution

The fourth proportional to 57,204.83, 78,947.36 and 31,719.20 is: 43,775.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,204.83 : 78,947.36 = 31,719.20 : x
  2. Step 2: Convert to fraction form
    57,204.83/78,947.36 = 31,719.20/x
  3. Step 3: Cross multiply
    57,204.83x = 78,947.36 × 31,719.20
  4. Step 4: Simplify right side
    57,204.83x = 2,504,146,666.93
  5. Step 5: Solve for x
    x = 2,504,146,666.93/57,204.83
  6. Step 6: Final answer
    x = 43,775.09

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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.