Home / 68,747.32-103,124.06-18,826.31

Finding the Fourth Proportional to 68,747.32, 103,124.06 and 18,826.31

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Solution

The fourth proportional to 68,747.32, 103,124.06 and 18,826.31 is: 28,240.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,747.32 : 103,124.06 = 18,826.31 : x
  2. Step 2: Convert to fraction form
    68,747.32/103,124.06 = 18,826.31/x
  3. Step 3: Cross multiply
    68,747.32x = 103,124.06 × 18,826.31
  4. Step 4: Simplify right side
    68,747.32x = 1,941,445,756.30
  5. Step 5: Solve for x
    x = 1,941,445,756.30/68,747.32
  6. Step 6: Final answer
    x = 28,240.31

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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.