Home / 68,530.20-102,746.70-31,108.20

Finding the Fourth Proportional to 68,530.20, 102,746.70 and 31,108.20

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Solution

The fourth proportional to 68,530.20, 102,746.70 and 31,108.20 is: 46,640.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,530.20 : 102,746.70 = 31,108.20 : x
  2. Step 2: Convert to fraction form
    68,530.20/102,746.70 = 31,108.20/x
  3. Step 3: Cross multiply
    68,530.20x = 102,746.70 × 31,108.20
  4. Step 4: Simplify right side
    68,530.20x = 3,196,264,892.94
  5. Step 5: Solve for x
    x = 3,196,264,892.94/68,530.20
  6. Step 6: Final answer
    x = 46,640.24

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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.