Home / 45,402.40-68,081.96-15,816.60

Finding the Fourth Proportional to 45,402.40, 68,081.96 and 15,816.60

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Solution

The fourth proportional to 45,402.40, 68,081.96 and 15,816.60 is: 23,717.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,402.40 : 68,081.96 = 15,816.60 : x
  2. Step 2: Convert to fraction form
    45,402.40/68,081.96 = 15,816.60/x
  3. Step 3: Cross multiply
    45,402.40x = 68,081.96 × 15,816.60
  4. Step 4: Simplify right side
    45,402.40x = 1,076,825,128.54
  5. Step 5: Solve for x
    x = 1,076,825,128.54/45,402.40
  6. Step 6: Final answer
    x = 23,717.36

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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.