Home / 84,537.36-126,814.49-31,243.34

Finding the Fourth Proportional to 84,537.36, 126,814.49 and 31,243.34

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Solution

The fourth proportional to 84,537.36, 126,814.49 and 31,243.34 is: 46,868.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,537.36 : 126,814.49 = 31,243.34 : x
  2. Step 2: Convert to fraction form
    84,537.36/126,814.49 = 31,243.34/x
  3. Step 3: Cross multiply
    84,537.36x = 126,814.49 × 31,243.34
  4. Step 4: Simplify right side
    84,537.36x = 3,962,107,437.71
  5. Step 5: Solve for x
    x = 3,962,107,437.71/84,537.36
  6. Step 6: Final answer
    x = 46,868.12

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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.