Home / 56,784.14-85,121.99-21,235.82

Finding the Fourth Proportional to 56,784.14, 85,121.99 and 21,235.82

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Solution

The fourth proportional to 56,784.14, 85,121.99 and 21,235.82 is: 31,833.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,784.14 : 85,121.99 = 21,235.82 : x
  2. Step 2: Convert to fraction form
    56,784.14/85,121.99 = 21,235.82/x
  3. Step 3: Cross multiply
    56,784.14x = 85,121.99 × 21,235.82
  4. Step 4: Simplify right side
    56,784.14x = 1,807,635,284.34
  5. Step 5: Solve for x
    x = 1,807,635,284.34/56,784.14
  6. Step 6: Final answer
    x = 31,833.45

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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.