Home / 91,408.84-137,000.96-51,343.60

Finding the Fourth Proportional to 91,408.84, 137,000.96 and 51,343.60

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Solution

The fourth proportional to 91,408.84, 137,000.96 and 51,343.60 is: 76,952.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,408.84 : 137,000.96 = 51,343.60 : x
  2. Step 2: Convert to fraction form
    91,408.84/137,000.96 = 51,343.60/x
  3. Step 3: Cross multiply
    91,408.84x = 137,000.96 × 51,343.60
  4. Step 4: Simplify right side
    91,408.84x = 7,034,122,361.50
  5. Step 5: Solve for x
    x = 7,034,122,361.50/91,408.84
  6. Step 6: Final answer
    x = 76,952.32

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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.