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Finding the Fourth Proportional to 86,151.55, 118,871.70 and 50,334.64

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Solution

The fourth proportional to 86,151.55, 118,871.70 and 50,334.64 is: 69,451.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,151.55 : 118,871.70 = 50,334.64 : x
  2. Step 2: Convert to fraction form
    86,151.55/118,871.70 = 50,334.64/x
  3. Step 3: Cross multiply
    86,151.55x = 118,871.70 × 50,334.64
  4. Step 4: Simplify right side
    86,151.55x = 5,983,364,225.69
  5. Step 5: Solve for x
    x = 5,983,364,225.69/86,151.55
  6. Step 6: Final answer
    x = 69,451.61

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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.