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Finding the Fourth Proportional to 56,864.81, 85,297.22 and 15,311.81

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Solution

The fourth proportional to 56,864.81, 85,297.22 and 15,311.81 is: 22,967.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,864.81 : 85,297.22 = 15,311.81 : x
  2. Step 2: Convert to fraction form
    56,864.81/85,297.22 = 15,311.81/x
  3. Step 3: Cross multiply
    56,864.81x = 85,297.22 × 15,311.81
  4. Step 4: Simplify right side
    56,864.81x = 1,306,054,826.17
  5. Step 5: Solve for x
    x = 1,306,054,826.17/56,864.81
  6. Step 6: Final answer
    x = 22,967.72

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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.