Home / 57,975.12-86,946.66-20,530.26

Finding the Fourth Proportional to 57,975.12, 86,946.66 and 20,530.26

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Solution

The fourth proportional to 57,975.12, 86,946.66 and 20,530.26 is: 30,789.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,975.12 : 86,946.66 = 20,530.26 : x
  2. Step 2: Convert to fraction form
    57,975.12/86,946.66 = 20,530.26/x
  3. Step 3: Cross multiply
    57,975.12x = 86,946.66 × 20,530.26
  4. Step 4: Simplify right side
    57,975.12x = 1,785,037,535.93
  5. Step 5: Solve for x
    x = 1,785,037,535.93/57,975.12
  6. Step 6: Final answer
    x = 30,789.72

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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.