Home / 57,048.18-78,724.35-31,896.06

Finding the Fourth Proportional to 57,048.18, 78,724.35 and 31,896.06

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Solution

The fourth proportional to 57,048.18, 78,724.35 and 31,896.06 is: 44,015.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,048.18 : 78,724.35 = 31,896.06 : x
  2. Step 2: Convert to fraction form
    57,048.18/78,724.35 = 31,896.06/x
  3. Step 3: Cross multiply
    57,048.18x = 78,724.35 × 31,896.06
  4. Step 4: Simplify right side
    57,048.18x = 2,510,996,591.06
  5. Step 5: Solve for x
    x = 2,510,996,591.06/57,048.18
  6. Step 6: Final answer
    x = 44,015.37

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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.