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Finding the Fourth Proportional to 89,427.60, 134,092.80 and 30,232.80

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Solution

The fourth proportional to 89,427.60, 134,092.80 and 30,232.80 is: 45,332.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,427.60 : 134,092.80 = 30,232.80 : x
  2. Step 2: Convert to fraction form
    89,427.60/134,092.80 = 30,232.80/x
  3. Step 3: Cross multiply
    89,427.60x = 134,092.80 × 30,232.80
  4. Step 4: Simplify right side
    89,427.60x = 4,054,000,803.84
  5. Step 5: Solve for x
    x = 4,054,000,803.84/89,427.60
  6. Step 6: Final answer
    x = 45,332.77

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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.