Home / 91,815.80-137,723.70-29,492.60

Finding the Fourth Proportional to 91,815.80, 137,723.70 and 29,492.60

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Solution

The fourth proportional to 91,815.80, 137,723.70 and 29,492.60 is: 44,238.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,815.80 : 137,723.70 = 29,492.60 : x
  2. Step 2: Convert to fraction form
    91,815.80/137,723.70 = 29,492.60/x
  3. Step 3: Cross multiply
    91,815.80x = 137,723.70 × 29,492.60
  4. Step 4: Simplify right side
    91,815.80x = 4,061,829,994.62
  5. Step 5: Solve for x
    x = 4,061,829,994.62/91,815.80
  6. Step 6: Final answer
    x = 44,238.90

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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.