Home / 89,122.26-122,988.70-51,396.50

Finding the Fourth Proportional to 89,122.26, 122,988.70 and 51,396.50

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Solution

The fourth proportional to 89,122.26, 122,988.70 and 51,396.50 is: 70,927.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,122.26 : 122,988.70 = 51,396.50 : x
  2. Step 2: Convert to fraction form
    89,122.26/122,988.70 = 51,396.50/x
  3. Step 3: Cross multiply
    89,122.26x = 122,988.70 × 51,396.50
  4. Step 4: Simplify right side
    89,122.26x = 6,321,188,719.55
  5. Step 5: Solve for x
    x = 6,321,188,719.55/89,122.26
  6. Step 6: Final answer
    x = 70,927.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.