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Finding the Fourth Proportional to 59,601.78, 89,347.10 and 20,131.30

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Solution

The fourth proportional to 59,601.78, 89,347.10 and 20,131.30 is: 30,178.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,601.78 : 89,347.10 = 20,131.30 : x
  2. Step 2: Convert to fraction form
    59,601.78/89,347.10 = 20,131.30/x
  3. Step 3: Cross multiply
    59,601.78x = 89,347.10 × 20,131.30
  4. Step 4: Simplify right side
    59,601.78x = 1,798,673,274.23
  5. Step 5: Solve for x
    x = 1,798,673,274.23/59,601.78
  6. Step 6: Final answer
    x = 30,178.18

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.