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Finding the Fourth Proportional to 65,381.67, 98,057.91 and 30,316.77

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Solution

The fourth proportional to 65,381.67, 98,057.91 and 30,316.77 is: 45,468.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,381.67 : 98,057.91 = 30,316.77 : x
  2. Step 2: Convert to fraction form
    65,381.67/98,057.91 = 30,316.77/x
  3. Step 3: Cross multiply
    65,381.67x = 98,057.91 × 30,316.77
  4. Step 4: Simplify right side
    65,381.67x = 2,972,799,104.15
  5. Step 5: Solve for x
    x = 2,972,799,104.15/65,381.67
  6. Step 6: Final answer
    x = 45,468.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.