Home / 91,487.22-137,115.98-49,365.60

Finding the Fourth Proportional to 91,487.22, 137,115.98 and 49,365.60

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Solution

The fourth proportional to 91,487.22, 137,115.98 and 49,365.60 is: 73,986.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,487.22 : 137,115.98 = 49,365.60 : x
  2. Step 2: Convert to fraction form
    91,487.22/137,115.98 = 49,365.60/x
  3. Step 3: Cross multiply
    91,487.22x = 137,115.98 × 49,365.60
  4. Step 4: Simplify right side
    91,487.22x = 6,768,812,622.29
  5. Step 5: Solve for x
    x = 6,768,812,622.29/91,487.22
  6. Step 6: Final answer
    x = 73,986.43

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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.