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Finding the Fourth Proportional to 65,981.44, 91,054.50 and 35,766.76

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Solution

The fourth proportional to 65,981.44, 91,054.50 and 35,766.76 is: 49,358.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,981.44 : 91,054.50 = 35,766.76 : x
  2. Step 2: Convert to fraction form
    65,981.44/91,054.50 = 35,766.76/x
  3. Step 3: Cross multiply
    65,981.44x = 91,054.50 × 35,766.76
  4. Step 4: Simplify right side
    65,981.44x = 3,256,724,448.42
  5. Step 5: Solve for x
    x = 3,256,724,448.42/65,981.44
  6. Step 6: Final answer
    x = 49,358.19

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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.