Home / 48,917.90-67,508.16-31,008.80

Finding the Fourth Proportional to 48,917.90, 67,508.16 and 31,008.80

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Solution

The fourth proportional to 48,917.90, 67,508.16 and 31,008.80 is: 42,793.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,917.90 : 67,508.16 = 31,008.80 : x
  2. Step 2: Convert to fraction form
    48,917.90/67,508.16 = 31,008.80/x
  3. Step 3: Cross multiply
    48,917.90x = 67,508.16 × 31,008.80
  4. Step 4: Simplify right side
    48,917.90x = 2,093,347,031.81
  5. Step 5: Solve for x
    x = 2,093,347,031.81/48,917.90
  6. Step 6: Final answer
    x = 42,793.07

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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.