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Finding the Fourth Proportional to 75,141.79, 112,734.64 and 33,579.07

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Solution

The fourth proportional to 75,141.79, 112,734.64 and 33,579.07 is: 50,378.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,141.79 : 112,734.64 = 33,579.07 : x
  2. Step 2: Convert to fraction form
    75,141.79/112,734.64 = 33,579.07/x
  3. Step 3: Cross multiply
    75,141.79x = 112,734.64 × 33,579.07
  4. Step 4: Simplify right side
    75,141.79x = 3,785,523,720.36
  5. Step 5: Solve for x
    x = 3,785,523,720.36/75,141.79
  6. Step 6: Final answer
    x = 50,378.41

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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.