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Finding the Fourth Proportional to 64,231.20, 88,674.77 and 38,743.99

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Solution

The fourth proportional to 64,231.20, 88,674.77 and 38,743.99 is: 53,488.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,231.20 : 88,674.77 = 38,743.99 : x
  2. Step 2: Convert to fraction form
    64,231.20/88,674.77 = 38,743.99/x
  3. Step 3: Cross multiply
    64,231.20x = 88,674.77 × 38,743.99
  4. Step 4: Simplify right side
    64,231.20x = 3,435,614,402.13
  5. Step 5: Solve for x
    x = 3,435,614,402.13/64,231.20
  6. Step 6: Final answer
    x = 53,488.25

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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.