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Finding the Fourth Proportional to 65,710.79, 90,680.92 and 35,496.11

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Solution

The fourth proportional to 65,710.79, 90,680.92 and 35,496.11 is: 48,984.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,710.79 : 90,680.92 = 35,496.11 : x
  2. Step 2: Convert to fraction form
    65,710.79/90,680.92 = 35,496.11/x
  3. Step 3: Cross multiply
    65,710.79x = 90,680.92 × 35,496.11
  4. Step 4: Simplify right side
    65,710.79x = 3,218,819,911.22
  5. Step 5: Solve for x
    x = 3,218,819,911.22/65,710.79
  6. Step 6: Final answer
    x = 48,984.65

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.