Home / 56,212.68-84,310.50-21,144.12

Finding the Fourth Proportional to 56,212.68, 84,310.50 and 21,144.12

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Solution

The fourth proportional to 56,212.68, 84,310.50 and 21,144.12 is: 31,712.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,212.68 : 84,310.50 = 21,144.12 : x
  2. Step 2: Convert to fraction form
    56,212.68/84,310.50 = 21,144.12/x
  3. Step 3: Cross multiply
    56,212.68x = 84,310.50 × 21,144.12
  4. Step 4: Simplify right side
    56,212.68x = 1,782,671,329.26
  5. Step 5: Solve for x
    x = 1,782,671,329.26/56,212.68
  6. Step 6: Final answer
    x = 31,712.98

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1.5x scale

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.