Home / 84,429.37-126,644.03-31,826.55

Finding the Fourth Proportional to 84,429.37, 126,644.03 and 31,826.55

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Solution

The fourth proportional to 84,429.37, 126,644.03 and 31,826.55 is: 47,739.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,429.37 : 126,644.03 = 31,826.55 : x
  2. Step 2: Convert to fraction form
    84,429.37/126,644.03 = 31,826.55/x
  3. Step 3: Cross multiply
    84,429.37x = 126,644.03 × 31,826.55
  4. Step 4: Simplify right side
    84,429.37x = 4,030,642,988.13
  5. Step 5: Solve for x
    x = 4,030,642,988.13/84,429.37
  6. Step 6: Final answer
    x = 47,739.82

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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.