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Finding the Fourth Proportional to 65,241.20, 90,029.85 and 36,947.09

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Solution

The fourth proportional to 65,241.20, 90,029.85 and 36,947.09 is: 50,985.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,241.20 : 90,029.85 = 36,947.09 : x
  2. Step 2: Convert to fraction form
    65,241.20/90,029.85 = 36,947.09/x
  3. Step 3: Cross multiply
    65,241.20x = 90,029.85 × 36,947.09
  4. Step 4: Simplify right side
    65,241.20x = 3,326,341,057.16
  5. Step 5: Solve for x
    x = 3,326,341,057.16/65,241.20
  6. Step 6: Final answer
    x = 50,985.28

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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.