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Finding the Fourth Proportional to 89,600.88, 134,484.47 and 45,258.78

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Solution

The fourth proportional to 89,600.88, 134,484.47 and 45,258.78 is: 67,930.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,600.88 : 134,484.47 = 45,258.78 : x
  2. Step 2: Convert to fraction form
    89,600.88/134,484.47 = 45,258.78/x
  3. Step 3: Cross multiply
    89,600.88x = 134,484.47 × 45,258.78
  4. Step 4: Simplify right side
    89,600.88x = 6,086,603,041.15
  5. Step 5: Solve for x
    x = 6,086,603,041.15/89,600.88
  6. Step 6: Final answer
    x = 67,930.17

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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.