Home / 56,181.60-84,262.68-21,121.56

Finding the Fourth Proportional to 56,181.60, 84,262.68 and 21,121.56

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Solution

The fourth proportional to 56,181.60, 84,262.68 and 21,121.56 is: 31,678.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,181.60 : 84,262.68 = 21,121.56 : x
  2. Step 2: Convert to fraction form
    56,181.60/84,262.68 = 21,121.56/x
  3. Step 3: Cross multiply
    56,181.60x = 84,262.68 × 21,121.56
  4. Step 4: Simplify right side
    56,181.60x = 1,779,759,251.38
  5. Step 5: Solve for x
    x = 1,779,759,251.38/56,181.60
  6. Step 6: Final answer
    x = 31,678.69

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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.