Home / 89,258.67-123,172.88-48,971.60

Finding the Fourth Proportional to 89,258.67, 123,172.88 and 48,971.60

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Solution

The fourth proportional to 89,258.67, 123,172.88 and 48,971.60 is: 67,578.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,258.67 : 123,172.88 = 48,971.60 : x
  2. Step 2: Convert to fraction form
    89,258.67/123,172.88 = 48,971.60/x
  3. Step 3: Cross multiply
    89,258.67x = 123,172.88 × 48,971.60
  4. Step 4: Simplify right side
    89,258.67x = 6,031,973,010.21
  5. Step 5: Solve for x
    x = 6,031,973,010.21/89,258.67
  6. Step 6: Final answer
    x = 67,578.57

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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.