Home / 49,310.76-68,003.10-31,387.08

Finding the Fourth Proportional to 49,310.76, 68,003.10 and 31,387.08

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Solution

The fourth proportional to 49,310.76, 68,003.10 and 31,387.08 is: 43,285.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,310.76 : 68,003.10 = 31,387.08 : x
  2. Step 2: Convert to fraction form
    49,310.76/68,003.10 = 31,387.08/x
  3. Step 3: Cross multiply
    49,310.76x = 68,003.10 × 31,387.08
  4. Step 4: Simplify right side
    49,310.76x = 2,134,418,739.95
  5. Step 5: Solve for x
    x = 2,134,418,739.95/49,310.76
  6. Step 6: Final answer
    x = 43,285.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.