Home / 76,072.34-104,979.75-42,538.34

Finding the Fourth Proportional to 76,072.34, 104,979.75 and 42,538.34

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Solution

The fourth proportional to 76,072.34, 104,979.75 and 42,538.34 is: 58,702.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,072.34 : 104,979.75 = 42,538.34 : x
  2. Step 2: Convert to fraction form
    76,072.34/104,979.75 = 42,538.34/x
  3. Step 3: Cross multiply
    76,072.34x = 104,979.75 × 42,538.34
  4. Step 4: Simplify right side
    76,072.34x = 4,465,664,298.62
  5. Step 5: Solve for x
    x = 4,465,664,298.62/76,072.34
  6. Step 6: Final answer
    x = 58,702.86

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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.