Home / 55,972.94-83,956.57-20,909.84

Finding the Fourth Proportional to 55,972.94, 83,956.57 and 20,909.84

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Solution

The fourth proportional to 55,972.94, 83,956.57 and 20,909.84 is: 31,363.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,972.94 : 83,956.57 = 20,909.84 : x
  2. Step 2: Convert to fraction form
    55,972.94/83,956.57 = 20,909.84/x
  3. Step 3: Cross multiply
    55,972.94x = 83,956.57 × 20,909.84
  4. Step 4: Simplify right side
    55,972.94x = 1,755,517,973.59
  5. Step 5: Solve for x
    x = 1,755,517,973.59/55,972.94
  6. Step 6: Final answer
    x = 31,363.69

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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.