Home / 57,272.38-85,816.23-30,989.50

Finding the Fourth Proportional to 57,272.38, 85,816.23 and 30,989.50

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Solution

The fourth proportional to 57,272.38, 85,816.23 and 30,989.50 is: 46,434.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,272.38 : 85,816.23 = 30,989.50 : x
  2. Step 2: Convert to fraction form
    57,272.38/85,816.23 = 30,989.50/x
  3. Step 3: Cross multiply
    57,272.38x = 85,816.23 × 30,989.50
  4. Step 4: Simplify right side
    57,272.38x = 2,659,402,059.59
  5. Step 5: Solve for x
    x = 2,659,402,059.59/57,272.38
  6. Step 6: Final answer
    x = 46,434.29

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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.