Home / 56,217.60-84,326.40-21,165.12

Finding the Fourth Proportional to 56,217.60, 84,326.40 and 21,165.12

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Solution

The fourth proportional to 56,217.60, 84,326.40 and 21,165.12 is: 31,747.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,217.60 : 84,326.40 = 21,165.12 : x
  2. Step 2: Convert to fraction form
    56,217.60/84,326.40 = 21,165.12/x
  3. Step 3: Cross multiply
    56,217.60x = 84,326.40 × 21,165.12
  4. Step 4: Simplify right side
    56,217.60x = 1,784,778,375.17
  5. Step 5: Solve for x
    x = 1,784,778,375.17/56,217.60
  6. Step 6: Final answer
    x = 31,747.68

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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.