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Finding the Fourth Proportional to 91,855.73, 137,783.55 and 29,531.09

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Solution

The fourth proportional to 91,855.73, 137,783.55 and 29,531.09 is: 44,296.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,855.73 : 137,783.55 = 29,531.09 : x
  2. Step 2: Convert to fraction form
    91,855.73/137,783.55 = 29,531.09/x
  3. Step 3: Cross multiply
    91,855.73x = 137,783.55 × 29,531.09
  4. Step 4: Simplify right side
    91,855.73x = 4,068,898,415.57
  5. Step 5: Solve for x
    x = 4,068,898,415.57/91,855.73
  6. Step 6: Final answer
    x = 44,296.62

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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.