Home / 68,095.20-102,142.86-21,351.72

Finding the Fourth Proportional to 68,095.20, 102,142.86 and 21,351.72

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Solution

The fourth proportional to 68,095.20, 102,142.86 and 21,351.72 is: 32,027.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,095.20 : 102,142.86 = 21,351.72 : x
  2. Step 2: Convert to fraction form
    68,095.20/102,142.86 = 21,351.72/x
  3. Step 3: Cross multiply
    68,095.20x = 102,142.86 × 21,351.72
  4. Step 4: Simplify right side
    68,095.20x = 2,180,925,746.72
  5. Step 5: Solve for x
    x = 2,180,925,746.72/68,095.20
  6. Step 6: Final answer
    x = 32,027.60

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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.