Home / 57,133.46-85,724.40-30,807.47

Finding the Fourth Proportional to 57,133.46, 85,724.40 and 30,807.47

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Solution

The fourth proportional to 57,133.46, 85,724.40 and 30,807.47 is: 46,224.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,133.46 : 85,724.40 = 30,807.47 : x
  2. Step 2: Convert to fraction form
    57,133.46/85,724.40 = 30,807.47/x
  3. Step 3: Cross multiply
    57,133.46x = 85,724.40 × 30,807.47
  4. Step 4: Simplify right side
    57,133.46x = 2,640,951,881.27
  5. Step 5: Solve for x
    x = 2,640,951,881.27/57,133.46
  6. Step 6: Final answer
    x = 46,224.26

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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.