Home / 51,009.68-76,520.35-13,571.28

Finding the Fourth Proportional to 51,009.68, 76,520.35 and 13,571.28

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Solution

The fourth proportional to 51,009.68, 76,520.35 and 13,571.28 is: 20,358.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,009.68 : 76,520.35 = 13,571.28 : x
  2. Step 2: Convert to fraction form
    51,009.68/76,520.35 = 13,571.28/x
  3. Step 3: Cross multiply
    51,009.68x = 76,520.35 × 13,571.28
  4. Step 4: Simplify right side
    51,009.68x = 1,038,479,061.62
  5. Step 5: Solve for x
    x = 1,038,479,061.62/51,009.68
  6. Step 6: Final answer
    x = 20,358.47

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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.