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Finding the Fourth Proportional to 88,374.85, 121,965.42 and 50,146.90

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Solution

The fourth proportional to 88,374.85, 121,965.42 and 50,146.90 is: 69,207.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,374.85 : 121,965.42 = 50,146.90 : x
  2. Step 2: Convert to fraction form
    88,374.85/121,965.42 = 50,146.90/x
  3. Step 3: Cross multiply
    88,374.85x = 121,965.42 × 50,146.90
  4. Step 4: Simplify right side
    88,374.85x = 6,116,187,720.20
  5. Step 5: Solve for x
    x = 6,116,187,720.20/88,374.85
  6. Step 6: Final answer
    x = 69,207.33

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1.5x scale

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.