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Finding the Fourth Proportional to 89,618.40, 134,492.40 and 50,133.60

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Solution

The fourth proportional to 89,618.40, 134,492.40 and 50,133.60 is: 75,236.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,618.40 : 134,492.40 = 50,133.60 : x
  2. Step 2: Convert to fraction form
    89,618.40/134,492.40 = 50,133.60/x
  3. Step 3: Cross multiply
    89,618.40x = 134,492.40 × 50,133.60
  4. Step 4: Simplify right side
    89,618.40x = 6,742,588,184.64
  5. Step 5: Solve for x
    x = 6,742,588,184.64/89,618.40
  6. Step 6: Final answer
    x = 75,236.65

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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.