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Finding the Fourth Proportional to 65,217.03, 89,993.88 and 37,988.88

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Solution

The fourth proportional to 65,217.03, 89,993.88 and 37,988.88 is: 52,421.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,217.03 : 89,993.88 = 37,988.88 : x
  2. Step 2: Convert to fraction form
    65,217.03/89,993.88 = 37,988.88/x
  3. Step 3: Cross multiply
    65,217.03x = 89,993.88 × 37,988.88
  4. Step 4: Simplify right side
    65,217.03x = 3,418,766,708.05
  5. Step 5: Solve for x
    x = 3,418,766,708.05/65,217.03
  6. Step 6: Final answer
    x = 52,421.38

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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.