Home / 56,542.20-84,780-21,484.32

Finding the Fourth Proportional to 56,542.20, 84,780 and 21,484.32

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Solution

The fourth proportional to 56,542.20, 84,780 and 21,484.32 is: 32,213.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,542.20 : 84,780 = 21,484.32 : x
  2. Step 2: Convert to fraction form
    56,542.20/84,780 = 21,484.32/x
  3. Step 3: Cross multiply
    56,542.20x = 84,780 × 21,484.32
  4. Step 4: Simplify right side
    56,542.20x = 1,821,440,649.60
  5. Step 5: Solve for x
    x = 1,821,440,649.60/56,542.20
  6. Step 6: Final answer
    x = 32,213.83

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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.