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Finding the Fourth Proportional to 71,771.84, 99,055.32 and 43,092.80

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Solution

The fourth proportional to 71,771.84, 99,055.32 and 43,092.80 is: 59,474.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,771.84 : 99,055.32 = 43,092.80 : x
  2. Step 2: Convert to fraction form
    71,771.84/99,055.32 = 43,092.80/x
  3. Step 3: Cross multiply
    71,771.84x = 99,055.32 × 43,092.80
  4. Step 4: Simplify right side
    71,771.84x = 4,268,571,093.70
  5. Step 5: Solve for x
    x = 4,268,571,093.70/71,771.84
  6. Step 6: Final answer
    x = 59,474.18

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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.