Home / 68,946.06-95,145.51-39,138.06

Finding the Fourth Proportional to 68,946.06, 95,145.51 and 39,138.06

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Solution

The fourth proportional to 68,946.06, 95,145.51 and 39,138.06 is: 54,010.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,946.06 : 95,145.51 = 39,138.06 : x
  2. Step 2: Convert to fraction form
    68,946.06/95,145.51 = 39,138.06/x
  3. Step 3: Cross multiply
    68,946.06x = 95,145.51 × 39,138.06
  4. Step 4: Simplify right side
    68,946.06x = 3,723,810,679.11
  5. Step 5: Solve for x
    x = 3,723,810,679.11/68,946.06
  6. Step 6: Final answer
    x = 54,010.49

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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.