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Finding the Fourth Proportional to 65,207.98, 89,987.39 and 38,351.62

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Solution

The fourth proportional to 65,207.98, 89,987.39 and 38,351.62 is: 52,925.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,207.98 : 89,987.39 = 38,351.62 : x
  2. Step 2: Convert to fraction form
    65,207.98/89,987.39 = 38,351.62/x
  3. Step 3: Cross multiply
    65,207.98x = 89,987.39 × 38,351.62
  4. Step 4: Simplify right side
    65,207.98x = 3,451,162,186.07
  5. Step 5: Solve for x
    x = 3,451,162,186.07/65,207.98
  6. Step 6: Final answer
    x = 52,925.46

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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.