Home / 84,999.24-127,498.09-31,689.41

Finding the Fourth Proportional to 84,999.24, 127,498.09 and 31,689.41

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Solution

The fourth proportional to 84,999.24, 127,498.09 and 31,689.41 is: 47,533.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,999.24 : 127,498.09 = 31,689.41 : x
  2. Step 2: Convert to fraction form
    84,999.24/127,498.09 = 31,689.41/x
  3. Step 3: Cross multiply
    84,999.24x = 127,498.09 × 31,689.41
  4. Step 4: Simplify right side
    84,999.24x = 4,040,338,531.51
  5. Step 5: Solve for x
    x = 4,040,338,531.51/84,999.24
  6. Step 6: Final answer
    x = 47,533.82

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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.