Home / 59,784.78-81,905.52-57,542.70

Finding the Fourth Proportional to 59,784.78, 81,905.52 and 57,542.70

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Solution

The fourth proportional to 59,784.78, 81,905.52 and 57,542.70 is: 78,833.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,784.78 : 81,905.52 = 57,542.70 : x
  2. Step 2: Convert to fraction form
    59,784.78/81,905.52 = 57,542.70/x
  3. Step 3: Cross multiply
    59,784.78x = 81,905.52 × 57,542.70
  4. Step 4: Simplify right side
    59,784.78x = 4,713,064,765.70
  5. Step 5: Solve for x
    x = 4,713,064,765.70/59,784.78
  6. Step 6: Final answer
    x = 78,833.86

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.