Home / 82,764.47-124,145.83-54,809.60

Finding the Fourth Proportional to 82,764.47, 124,145.83 and 54,809.60

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Solution

The fourth proportional to 82,764.47, 124,145.83 and 54,809.60 is: 82,213.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,764.47 : 124,145.83 = 54,809.60 : x
  2. Step 2: Convert to fraction form
    82,764.47/124,145.83 = 54,809.60/x
  3. Step 3: Cross multiply
    82,764.47x = 124,145.83 × 54,809.60
  4. Step 4: Simplify right side
    82,764.47x = 6,804,382,663.24
  5. Step 5: Solve for x
    x = 6,804,382,663.24/82,764.47
  6. Step 6: Final answer
    x = 82,213.82

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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.