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Finding the Fourth Proportional to 81,253.04, 121,813.49 and 33,903.40

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Solution

The fourth proportional to 81,253.04, 121,813.49 and 33,903.40 is: 50,827.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,253.04 : 121,813.49 = 33,903.40 : x
  2. Step 2: Convert to fraction form
    81,253.04/121,813.49 = 33,903.40/x
  3. Step 3: Cross multiply
    81,253.04x = 121,813.49 × 33,903.40
  4. Step 4: Simplify right side
    81,253.04x = 4,129,891,257.09
  5. Step 5: Solve for x
    x = 4,129,891,257.09/81,253.04
  6. Step 6: Final answer
    x = 50,827.53

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1.5x scale

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.