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Finding the Fourth Proportional to 45,393.36, 68,091.88 and 15,814.20

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Solution

The fourth proportional to 45,393.36, 68,091.88 and 15,814.20 is: 23,721.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,393.36 : 68,091.88 = 15,814.20 : x
  2. Step 2: Convert to fraction form
    45,393.36/68,091.88 = 15,814.20/x
  3. Step 3: Cross multiply
    45,393.36x = 68,091.88 × 15,814.20
  4. Step 4: Simplify right side
    45,393.36x = 1,076,818,608.70
  5. Step 5: Solve for x
    x = 1,076,818,608.70/45,393.36
  6. Step 6: Final answer
    x = 23,721.94

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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.