Home / 84,289.77-126,453.13-31,699.24

Finding the Fourth Proportional to 84,289.77, 126,453.13 and 31,699.24

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Solution

The fourth proportional to 84,289.77, 126,453.13 and 31,699.24 is: 47,555.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,289.77 : 126,453.13 = 31,699.24 : x
  2. Step 2: Convert to fraction form
    84,289.77/126,453.13 = 31,699.24/x
  3. Step 3: Cross multiply
    84,289.77x = 126,453.13 × 31,699.24
  4. Step 4: Simplify right side
    84,289.77x = 4,008,467,721.24
  5. Step 5: Solve for x
    x = 4,008,467,721.24/84,289.77
  6. Step 6: Final answer
    x = 47,555.80

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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.