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Finding the Fourth Proportional to 88,771.68, 122,570.82 and 56,958.12

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Solution

The fourth proportional to 88,771.68, 122,570.82 and 56,958.12 is: 78,644.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,771.68 : 122,570.82 = 56,958.12 : x
  2. Step 2: Convert to fraction form
    88,771.68/122,570.82 = 56,958.12/x
  3. Step 3: Cross multiply
    88,771.68x = 122,570.82 × 56,958.12
  4. Step 4: Simplify right side
    88,771.68x = 6,981,403,474.06
  5. Step 5: Solve for x
    x = 6,981,403,474.06/88,771.68
  6. Step 6: Final answer
    x = 78,644.49

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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.