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Finding the Fourth Proportional to 65,339.60, 90,168.26 and 36,267.68

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Solution

The fourth proportional to 65,339.60, 90,168.26 and 36,267.68 is: 50,049.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,339.60 : 90,168.26 = 36,267.68 : x
  2. Step 2: Convert to fraction form
    65,339.60/90,168.26 = 36,267.68/x
  3. Step 3: Cross multiply
    65,339.60x = 90,168.26 × 36,267.68
  4. Step 4: Simplify right side
    65,339.60x = 3,270,193,643.92
  5. Step 5: Solve for x
    x = 3,270,193,643.92/65,339.60
  6. Step 6: Final answer
    x = 50,049.19

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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.