Home / 62,921.28-94,392.72-20,811.36

Finding the Fourth Proportional to 62,921.28, 94,392.72 and 20,811.36

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Solution

The fourth proportional to 62,921.28, 94,392.72 and 20,811.36 is: 31,220.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,921.28 : 94,392.72 = 20,811.36 : x
  2. Step 2: Convert to fraction form
    62,921.28/94,392.72 = 20,811.36/x
  3. Step 3: Cross multiply
    62,921.28x = 94,392.72 × 20,811.36
  4. Step 4: Simplify right side
    62,921.28x = 1,964,440,877.30
  5. Step 5: Solve for x
    x = 1,964,440,877.30/62,921.28
  6. Step 6: Final answer
    x = 31,220.61

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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.