Home / 61,921.28-92,895.36-20,366.72

Finding the Fourth Proportional to 61,921.28, 92,895.36 and 20,366.72

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Solution

The fourth proportional to 61,921.28, 92,895.36 and 20,366.72 is: 30,554.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,921.28 : 92,895.36 = 20,366.72 : x
  2. Step 2: Convert to fraction form
    61,921.28/92,895.36 = 20,366.72/x
  3. Step 3: Cross multiply
    61,921.28x = 92,895.36 × 20,366.72
  4. Step 4: Simplify right side
    61,921.28x = 1,891,973,786.42
  5. Step 5: Solve for x
    x = 1,891,973,786.42/61,921.28
  6. Step 6: Final answer
    x = 30,554.50

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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.