Home / 56,214.40-84,256.68-21,131.68

Finding the Fourth Proportional to 56,214.40, 84,256.68 and 21,131.68

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Solution

The fourth proportional to 56,214.40, 84,256.68 and 21,131.68 is: 31,673.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,214.40 : 84,256.68 = 21,131.68 : x
  2. Step 2: Convert to fraction form
    56,214.40/84,256.68 = 21,131.68/x
  3. Step 3: Cross multiply
    56,214.40x = 84,256.68 × 21,131.68
  4. Step 4: Simplify right side
    56,214.40x = 1,780,485,199.62
  5. Step 5: Solve for x
    x = 1,780,485,199.62/56,214.40
  6. Step 6: Final answer
    x = 31,673.12

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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.