Home / 57,216.24-78,966.59-31,728.29

Finding the Fourth Proportional to 57,216.24, 78,966.59 and 31,728.29

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Solution

The fourth proportional to 57,216.24, 78,966.59 and 31,728.29 is: 43,789.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,216.24 : 78,966.59 = 31,728.29 : x
  2. Step 2: Convert to fraction form
    57,216.24/78,966.59 = 31,728.29/x
  3. Step 3: Cross multiply
    57,216.24x = 78,966.59 × 31,728.29
  4. Step 4: Simplify right side
    57,216.24x = 2,505,474,314.36
  5. Step 5: Solve for x
    x = 2,505,474,314.36/57,216.24
  6. Step 6: Final answer
    x = 43,789.57

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1.5x scale

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.