Home / 57,275.48-85,947.24-30,979.64

Finding the Fourth Proportional to 57,275.48, 85,947.24 and 30,979.64

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Solution

The fourth proportional to 57,275.48, 85,947.24 and 30,979.64 is: 46,487.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,275.48 : 85,947.24 = 30,979.64 : x
  2. Step 2: Convert to fraction form
    57,275.48/85,947.24 = 30,979.64/x
  3. Step 3: Cross multiply
    57,275.48x = 85,947.24 × 30,979.64
  4. Step 4: Simplify right side
    57,275.48x = 2,662,614,554.19
  5. Step 5: Solve for x
    x = 2,662,614,554.19/57,275.48
  6. Step 6: Final answer
    x = 46,487.86

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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.