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Finding the Fourth Proportional to 88,369.58, 121,954.30 and 50,643.92

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Solution

The fourth proportional to 88,369.58, 121,954.30 and 50,643.92 is: 69,891.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,369.58 : 121,954.30 = 50,643.92 : x
  2. Step 2: Convert to fraction form
    88,369.58/121,954.30 = 50,643.92/x
  3. Step 3: Cross multiply
    88,369.58x = 121,954.30 × 50,643.92
  4. Step 4: Simplify right side
    88,369.58x = 6,176,243,812.86
  5. Step 5: Solve for x
    x = 6,176,243,812.86/88,369.58
  6. Step 6: Final answer
    x = 69,891.06

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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.