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Finding the Fourth Proportional to 91,809.80, 137,733.90 and 29,486.60

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Solution

The fourth proportional to 91,809.80, 137,733.90 and 29,486.60 is: 44,236.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,809.80 : 137,733.90 = 29,486.60 : x
  2. Step 2: Convert to fraction form
    91,809.80/137,733.90 = 29,486.60/x
  3. Step 3: Cross multiply
    91,809.80x = 137,733.90 × 29,486.60
  4. Step 4: Simplify right side
    91,809.80x = 4,061,304,415.74
  5. Step 5: Solve for x
    x = 4,061,304,415.74/91,809.80
  6. Step 6: Final answer
    x = 44,236.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.