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Finding the Fourth Proportional to 64,760.64, 89,371.32 and 36,467.28

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Solution

The fourth proportional to 64,760.64, 89,371.32 and 36,467.28 is: 50,325.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,760.64 : 89,371.32 = 36,467.28 : x
  2. Step 2: Convert to fraction form
    64,760.64/89,371.32 = 36,467.28/x
  3. Step 3: Cross multiply
    64,760.64x = 89,371.32 × 36,467.28
  4. Step 4: Simplify right side
    64,760.64x = 3,259,128,950.41
  5. Step 5: Solve for x
    x = 3,259,128,950.41/64,760.64
  6. Step 6: Final answer
    x = 50,325.77

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1.5x scale

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.