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Finding the Fourth Proportional to 65,604.66, 90,534.72 and 37,309.74

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Solution

The fourth proportional to 65,604.66, 90,534.72 and 37,309.74 is: 51,487.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,604.66 : 90,534.72 = 37,309.74 : x
  2. Step 2: Convert to fraction form
    65,604.66/90,534.72 = 37,309.74/x
  3. Step 3: Cross multiply
    65,604.66x = 90,534.72 × 37,309.74
  4. Step 4: Simplify right side
    65,604.66x = 3,377,826,864.17
  5. Step 5: Solve for x
    x = 3,377,826,864.17/65,604.66
  6. Step 6: Final answer
    x = 51,487.61

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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.