Home / 91,526.18-137,236.68-48,778.98

Finding the Fourth Proportional to 91,526.18, 137,236.68 and 48,778.98

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Solution

The fourth proportional to 91,526.18, 137,236.68 and 48,778.98 is: 73,140.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,526.18 : 137,236.68 = 48,778.98 : x
  2. Step 2: Convert to fraction form
    91,526.18/137,236.68 = 48,778.98/x
  3. Step 3: Cross multiply
    91,526.18x = 137,236.68 × 48,778.98
  4. Step 4: Simplify right side
    91,526.18x = 6,694,265,268.99
  5. Step 5: Solve for x
    x = 6,694,265,268.99/91,526.18
  6. Step 6: Final answer
    x = 73,140.44

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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.