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Finding the Fourth Proportional to 108,240.40, 162,331.80 and 33,360.40

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Solution

The fourth proportional to 108,240.40, 162,331.80 and 33,360.40 is: 50,031.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,240.40 : 162,331.80 = 33,360.40 : x
  2. Step 2: Convert to fraction form
    108,240.40/162,331.80 = 33,360.40/x
  3. Step 3: Cross multiply
    108,240.40x = 162,331.80 × 33,360.40
  4. Step 4: Simplify right side
    108,240.40x = 5,415,453,780.72
  5. Step 5: Solve for x
    x = 5,415,453,780.72/108,240.40
  6. Step 6: Final answer
    x = 50,031.72

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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.