Home / 56,211.48-84,320.52-21,151.44

Finding the Fourth Proportional to 56,211.48, 84,320.52 and 21,151.44

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Solution

The fourth proportional to 56,211.48, 84,320.52 and 21,151.44 is: 31,728.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,211.48 : 84,320.52 = 21,151.44 : x
  2. Step 2: Convert to fraction form
    56,211.48/84,320.52 = 21,151.44/x
  3. Step 3: Cross multiply
    56,211.48x = 84,320.52 × 21,151.44
  4. Step 4: Simplify right side
    56,211.48x = 1,783,500,419.55
  5. Step 5: Solve for x
    x = 1,783,500,419.55/56,211.48
  6. Step 6: Final answer
    x = 31,728.40

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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.