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Finding the Fourth Proportional to 59,894, 89,840.64 and 15,520.64

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Solution

The fourth proportional to 59,894, 89,840.64 and 15,520.64 is: 23,280.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,894 : 89,840.64 = 15,520.64 : x
  2. Step 2: Convert to fraction form
    59,894/89,840.64 = 15,520.64/x
  3. Step 3: Cross multiply
    59,894x = 89,840.64 × 15,520.64
  4. Step 4: Simplify right side
    59,894x = 1,394,384,230.81
  5. Step 5: Solve for x
    x = 1,394,384,230.81/59,894
  6. Step 6: Final answer
    x = 23,280.87

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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.