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Finding the Fourth Proportional to 65,259.10, 90,057.56 and 36,964.79

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Solution

The fourth proportional to 65,259.10, 90,057.56 and 36,964.79 is: 51,011.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,259.10 : 90,057.56 = 36,964.79 : x
  2. Step 2: Convert to fraction form
    65,259.10/90,057.56 = 36,964.79/x
  3. Step 3: Cross multiply
    65,259.10x = 90,057.56 × 36,964.79
  4. Step 4: Simplify right side
    65,259.10x = 3,328,958,495.92
  5. Step 5: Solve for x
    x = 3,328,958,495.92/65,259.10
  6. Step 6: Final answer
    x = 51,011.41

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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.