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Finding the Fourth Proportional to 65,279.72, 90,100.50 and 37,001

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Solution

The fourth proportional to 65,279.72, 90,100.50 and 37,001 is: 51,069.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,279.72 : 90,100.50 = 37,001 : x
  2. Step 2: Convert to fraction form
    65,279.72/90,100.50 = 37,001/x
  3. Step 3: Cross multiply
    65,279.72x = 90,100.50 × 37,001
  4. Step 4: Simplify right side
    65,279.72x = 3,333,808,600.50
  5. Step 5: Solve for x
    x = 3,333,808,600.50/65,279.72
  6. Step 6: Final answer
    x = 51,069.59

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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.