Home / 84,320.62-126,379.40-30,969.70

Finding the Fourth Proportional to 84,320.62, 126,379.40 and 30,969.70

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Solution

The fourth proportional to 84,320.62, 126,379.40 and 30,969.70 is: 46,417.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,320.62 : 126,379.40 = 30,969.70 : x
  2. Step 2: Convert to fraction form
    84,320.62/126,379.40 = 30,969.70/x
  3. Step 3: Cross multiply
    84,320.62x = 126,379.40 × 30,969.70
  4. Step 4: Simplify right side
    84,320.62x = 3,913,932,104.18
  5. Step 5: Solve for x
    x = 3,913,932,104.18/84,320.62
  6. Step 6: Final answer
    x = 46,417.26

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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.