Home / 84,243.04-126,364.72-21,913.44

Finding the Fourth Proportional to 84,243.04, 126,364.72 and 21,913.44

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Solution

The fourth proportional to 84,243.04, 126,364.72 and 21,913.44 is: 32,870.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,243.04 : 126,364.72 = 21,913.44 : x
  2. Step 2: Convert to fraction form
    84,243.04/126,364.72 = 21,913.44/x
  3. Step 3: Cross multiply
    84,243.04x = 126,364.72 × 21,913.44
  4. Step 4: Simplify right side
    84,243.04x = 2,769,085,709.84
  5. Step 5: Solve for x
    x = 2,769,085,709.84/84,243.04
  6. Step 6: Final answer
    x = 32,870.20

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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.