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Finding the Fourth Proportional to 65,284.47, 90,092.57 and 36,990.16

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Solution

The fourth proportional to 65,284.47, 90,092.57 and 36,990.16 is: 51,046.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,284.47 : 90,092.57 = 36,990.16 : x
  2. Step 2: Convert to fraction form
    65,284.47/90,092.57 = 36,990.16/x
  3. Step 3: Cross multiply
    65,284.47x = 90,092.57 × 36,990.16
  4. Step 4: Simplify right side
    65,284.47x = 3,332,538,579.11
  5. Step 5: Solve for x
    x = 3,332,538,579.11/65,284.47
  6. Step 6: Final answer
    x = 51,046.42

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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.