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Finding the Fourth Proportional to 64,903.36, 89,561.28 and 36,616

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Solution

The fourth proportional to 64,903.36, 89,561.28 and 36,616 is: 50,527.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,903.36 : 89,561.28 = 36,616 : x
  2. Step 2: Convert to fraction form
    64,903.36/89,561.28 = 36,616/x
  3. Step 3: Cross multiply
    64,903.36x = 89,561.28 × 36,616
  4. Step 4: Simplify right side
    64,903.36x = 3,279,375,828.48
  5. Step 5: Solve for x
    x = 3,279,375,828.48/64,903.36
  6. Step 6: Final answer
    x = 50,527.06

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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.