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Finding the Fourth Proportional to 65,415.44, 90,249.68 and 37,104.72

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Solution

The fourth proportional to 65,415.44, 90,249.68 and 37,104.72 is: 51,191.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,415.44 : 90,249.68 = 37,104.72 : x
  2. Step 2: Convert to fraction form
    65,415.44/90,249.68 = 37,104.72/x
  3. Step 3: Cross multiply
    65,415.44x = 90,249.68 × 37,104.72
  4. Step 4: Simplify right side
    65,415.44x = 3,348,689,106.49
  5. Step 5: Solve for x
    x = 3,348,689,106.49/65,415.44
  6. Step 6: Final answer
    x = 51,191.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.