Home / 45,390.11-68,079.69-15,805.49

Finding the Fourth Proportional to 45,390.11, 68,079.69 and 15,805.49

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Solution

The fourth proportional to 45,390.11, 68,079.69 and 15,805.49 is: 23,706.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,390.11 : 68,079.69 = 15,805.49 : x
  2. Step 2: Convert to fraction form
    45,390.11/68,079.69 = 15,805.49/x
  3. Step 3: Cross multiply
    45,390.11x = 68,079.69 × 15,805.49
  4. Step 4: Simplify right side
    45,390.11x = 1,076,032,519.10
  5. Step 5: Solve for x
    x = 1,076,032,519.10/45,390.11
  6. Step 6: Final answer
    x = 23,706.32

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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.