Home / 57,011.54-85,521.63-19,571.31

Finding the Fourth Proportional to 57,011.54, 85,521.63 and 19,571.31

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Solution

The fourth proportional to 57,011.54, 85,521.63 and 19,571.31 is: 29,358.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,011.54 : 85,521.63 = 19,571.31 : x
  2. Step 2: Convert to fraction form
    57,011.54/85,521.63 = 19,571.31/x
  3. Step 3: Cross multiply
    57,011.54x = 85,521.63 × 19,571.31
  4. Step 4: Simplify right side
    57,011.54x = 1,673,770,332.44
  5. Step 5: Solve for x
    x = 1,673,770,332.44/57,011.54
  6. Step 6: Final answer
    x = 29,358.45

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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.