Home / 71,386.30-106,976.85-40,155.58

Finding the Fourth Proportional to 71,386.30, 106,976.85 and 40,155.58

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Solution

The fourth proportional to 71,386.30, 106,976.85 and 40,155.58 is: 60,175.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,386.30 : 106,976.85 = 40,155.58 : x
  2. Step 2: Convert to fraction form
    71,386.30/106,976.85 = 40,155.58/x
  3. Step 3: Cross multiply
    71,386.30x = 106,976.85 × 40,155.58
  4. Step 4: Simplify right side
    71,386.30x = 4,295,717,458.32
  5. Step 5: Solve for x
    x = 4,295,717,458.32/71,386.30
  6. Step 6: Final answer
    x = 60,175.66

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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.