Home / 84,182.49-126,236.54-31,555.06

Finding the Fourth Proportional to 84,182.49, 126,236.54 and 31,555.06

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Solution

The fourth proportional to 84,182.49, 126,236.54 and 31,555.06 is: 47,318.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,182.49 : 126,236.54 = 31,555.06 : x
  2. Step 2: Convert to fraction form
    84,182.49/126,236.54 = 31,555.06/x
  3. Step 3: Cross multiply
    84,182.49x = 126,236.54 × 31,555.06
  4. Step 4: Simplify right side
    84,182.49x = 3,983,401,357.19
  5. Step 5: Solve for x
    x = 3,983,401,357.19/84,182.49
  6. Step 6: Final answer
    x = 47,318.64

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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.