Home / 45,439.26-68,083.29-15,840.78

Finding the Fourth Proportional to 45,439.26, 68,083.29 and 15,840.78

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Solution

The fourth proportional to 45,439.26, 68,083.29 and 15,840.78 is: 23,734.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,439.26 : 68,083.29 = 15,840.78 : x
  2. Step 2: Convert to fraction form
    45,439.26/68,083.29 = 15,840.78/x
  3. Step 3: Cross multiply
    45,439.26x = 68,083.29 × 15,840.78
  4. Step 4: Simplify right side
    45,439.26x = 1,078,492,418.57
  5. Step 5: Solve for x
    x = 1,078,492,418.57/45,439.26
  6. Step 6: Final answer
    x = 23,734.81

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1.5x scale

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.