Home / 56,780.73-78,357.47-32,912.01

Finding the Fourth Proportional to 56,780.73, 78,357.47 and 32,912.01

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Solution

The fourth proportional to 56,780.73, 78,357.47 and 32,912.01 is: 45,418.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,780.73 : 78,357.47 = 32,912.01 : x
  2. Step 2: Convert to fraction form
    56,780.73/78,357.47 = 32,912.01/x
  3. Step 3: Cross multiply
    56,780.73x = 78,357.47 × 32,912.01
  4. Step 4: Simplify right side
    56,780.73x = 2,578,901,671.65
  5. Step 5: Solve for x
    x = 2,578,901,671.65/56,780.73
  6. Step 6: Final answer
    x = 45,418.61

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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.