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Finding the Fourth Proportional to 64,040.79, 96,040.42 and 21,334.83

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Solution

The fourth proportional to 64,040.79, 96,040.42 and 21,334.83 is: 31,995.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,040.79 : 96,040.42 = 21,334.83 : x
  2. Step 2: Convert to fraction form
    64,040.79/96,040.42 = 21,334.83/x
  3. Step 3: Cross multiply
    64,040.79x = 96,040.42 × 21,334.83
  4. Step 4: Simplify right side
    64,040.79x = 2,049,006,033.83
  5. Step 5: Solve for x
    x = 2,049,006,033.83/64,040.79
  6. Step 6: Final answer
    x = 31,995.33

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1.5x scale

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.