Home / 56,311.74-84,467.64-18,864.90

Finding the Fourth Proportional to 56,311.74, 84,467.64 and 18,864.90

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Solution

The fourth proportional to 56,311.74, 84,467.64 and 18,864.90 is: 28,297.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,311.74 : 84,467.64 = 18,864.90 : x
  2. Step 2: Convert to fraction form
    56,311.74/84,467.64 = 18,864.90/x
  3. Step 3: Cross multiply
    56,311.74x = 84,467.64 × 18,864.90
  4. Step 4: Simplify right side
    56,311.74x = 1,593,473,581.84
  5. Step 5: Solve for x
    x = 1,593,473,581.84/56,311.74
  6. Step 6: Final answer
    x = 28,297.36

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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.