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Finding the Fourth Proportional to 40,565.81, 60,848.87 and 12,863.81

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Solution

The fourth proportional to 40,565.81, 60,848.87 and 12,863.81 is: 19,295.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,565.81 : 60,848.87 = 12,863.81 : x
  2. Step 2: Convert to fraction form
    40,565.81/60,848.87 = 12,863.81/x
  3. Step 3: Cross multiply
    40,565.81x = 60,848.87 × 12,863.81
  4. Step 4: Simplify right side
    40,565.81x = 782,748,462.56
  5. Step 5: Solve for x
    x = 782,748,462.56/40,565.81
  6. Step 6: Final answer
    x = 19,295.77

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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.