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Finding the Fourth Proportional to 64,754.64, 89,363.04 and 36,461.28

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Solution

The fourth proportional to 64,754.64, 89,363.04 and 36,461.28 is: 50,317.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,754.64 : 89,363.04 = 36,461.28 : x
  2. Step 2: Convert to fraction form
    64,754.64/89,363.04 = 36,461.28/x
  3. Step 3: Cross multiply
    64,754.64x = 89,363.04 × 36,461.28
  4. Step 4: Simplify right side
    64,754.64x = 3,258,290,823.09
  5. Step 5: Solve for x
    x = 3,258,290,823.09/64,754.64
  6. Step 6: Final answer
    x = 50,317.49

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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.