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Finding the Fourth Proportional to 64,374.24, 88,839.46 and 40,189.52

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Solution

The fourth proportional to 64,374.24, 88,839.46 and 40,189.52 is: 55,463.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,374.24 : 88,839.46 = 40,189.52 : x
  2. Step 2: Convert to fraction form
    64,374.24/88,839.46 = 40,189.52/x
  3. Step 3: Cross multiply
    64,374.24x = 88,839.46 × 40,189.52
  4. Step 4: Simplify right side
    64,374.24x = 3,570,415,254.46
  5. Step 5: Solve for x
    x = 3,570,415,254.46/64,374.24
  6. Step 6: Final answer
    x = 55,463.42

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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.