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Finding the Fourth Proportional to 64,753.08, 89,361 and 36,459.80

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Solution

The fourth proportional to 64,753.08, 89,361 and 36,459.80 is: 50,315.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,753.08 : 89,361 = 36,459.80 : x
  2. Step 2: Convert to fraction form
    64,753.08/89,361 = 36,459.80/x
  3. Step 3: Cross multiply
    64,753.08x = 89,361 × 36,459.80
  4. Step 4: Simplify right side
    64,753.08x = 3,258,084,187.80
  5. Step 5: Solve for x
    x = 3,258,084,187.80/64,753.08
  6. Step 6: Final answer
    x = 50,315.51

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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.