Home / 56,772.51-78,286.68-42,409.83

Finding the Fourth Proportional to 56,772.51, 78,286.68 and 42,409.83

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Solution

The fourth proportional to 56,772.51, 78,286.68 and 42,409.83 is: 58,481.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,772.51 : 78,286.68 = 42,409.83 : x
  2. Step 2: Convert to fraction form
    56,772.51/78,286.68 = 42,409.83/x
  3. Step 3: Cross multiply
    56,772.51x = 78,286.68 × 42,409.83
  4. Step 4: Simplify right side
    56,772.51x = 3,320,124,790.06
  5. Step 5: Solve for x
    x = 3,320,124,790.06/56,772.51
  6. Step 6: Final answer
    x = 58,481.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.