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Finding the Fourth Proportional to 65,695.32, 90,659.64 and 37,401

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Solution

The fourth proportional to 65,695.32, 90,659.64 and 37,401 is: 51,613.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,695.32 : 90,659.64 = 37,401 : x
  2. Step 2: Convert to fraction form
    65,695.32/90,659.64 = 37,401/x
  3. Step 3: Cross multiply
    65,695.32x = 90,659.64 × 37,401
  4. Step 4: Simplify right side
    65,695.32x = 3,390,761,195.64
  5. Step 5: Solve for x
    x = 3,390,761,195.64/65,695.32
  6. Step 6: Final answer
    x = 51,613.44

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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.