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Finding the Fourth Proportional to 75,003.20, 112,375.20 and 63,339.20

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Solution

The fourth proportional to 75,003.20, 112,375.20 and 63,339.20 is: 94,899.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,003.20 : 112,375.20 = 63,339.20 : x
  2. Step 2: Convert to fraction form
    75,003.20/112,375.20 = 63,339.20/x
  3. Step 3: Cross multiply
    75,003.20x = 112,375.20 × 63,339.20
  4. Step 4: Simplify right side
    75,003.20x = 7,117,755,267.84
  5. Step 5: Solve for x
    x = 7,117,755,267.84/75,003.20
  6. Step 6: Final answer
    x = 94,899.35

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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.