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Finding the Fourth Proportional to 65,287.64, 90,091.86 and 36,997.76

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Solution

The fourth proportional to 65,287.64, 90,091.86 and 36,997.76 is: 51,054.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,287.64 : 90,091.86 = 36,997.76 : x
  2. Step 2: Convert to fraction form
    65,287.64/90,091.86 = 36,997.76/x
  3. Step 3: Cross multiply
    65,287.64x = 90,091.86 × 36,997.76
  4. Step 4: Simplify right side
    65,287.64x = 3,333,197,014.23
  5. Step 5: Solve for x
    x = 3,333,197,014.23/65,287.64
  6. Step 6: Final answer
    x = 51,054.03

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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.