Home / 61,919.28-92,892.36-20,364.72

Finding the Fourth Proportional to 61,919.28, 92,892.36 and 20,364.72

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Solution

The fourth proportional to 61,919.28, 92,892.36 and 20,364.72 is: 30,551.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,919.28 : 92,892.36 = 20,364.72 : x
  2. Step 2: Convert to fraction form
    61,919.28/92,892.36 = 20,364.72/x
  3. Step 3: Cross multiply
    61,919.28x = 92,892.36 × 20,364.72
  4. Step 4: Simplify right side
    61,919.28x = 1,891,726,901.54
  5. Step 5: Solve for x
    x = 1,891,726,901.54/61,919.28
  6. Step 6: Final answer
    x = 30,551.50

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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.