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Finding the Fourth Proportional to 56,112.81, 84,154.81 and 16,660.77

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Solution

The fourth proportional to 56,112.81, 84,154.81 and 16,660.77 is: 24,986.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,112.81 : 84,154.81 = 16,660.77 : x
  2. Step 2: Convert to fraction form
    56,112.81/84,154.81 = 16,660.77/x
  3. Step 3: Cross multiply
    56,112.81x = 84,154.81 × 16,660.77
  4. Step 4: Simplify right side
    56,112.81x = 1,402,083,933.80
  5. Step 5: Solve for x
    x = 1,402,083,933.80/56,112.81
  6. Step 6: Final answer
    x = 24,986.88

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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.