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Finding the Fourth Proportional to 64,833.62, 89,470.78 and 40,971.02

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Solution

The fourth proportional to 64,833.62, 89,470.78 and 40,971.02 is: 56,540.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,833.62 : 89,470.78 = 40,971.02 : x
  2. Step 2: Convert to fraction form
    64,833.62/89,470.78 = 40,971.02/x
  3. Step 3: Cross multiply
    64,833.62x = 89,470.78 × 40,971.02
  4. Step 4: Simplify right side
    64,833.62x = 3,665,708,567.01
  5. Step 5: Solve for x
    x = 3,665,708,567.01/64,833.62
  6. Step 6: Final answer
    x = 56,540.25

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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.