Home / 68,789.50-103,184.63-31,323.46

Finding the Fourth Proportional to 68,789.50, 103,184.63 and 31,323.46

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Solution

The fourth proportional to 68,789.50, 103,184.63 and 31,323.46 is: 46,985.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,789.50 : 103,184.63 = 31,323.46 : x
  2. Step 2: Convert to fraction form
    68,789.50/103,184.63 = 31,323.46/x
  3. Step 3: Cross multiply
    68,789.50x = 103,184.63 × 31,323.46
  4. Step 4: Simplify right side
    68,789.50x = 3,232,099,702.97
  5. Step 5: Solve for x
    x = 3,232,099,702.97/68,789.50
  6. Step 6: Final answer
    x = 46,985.36

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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.