Home / 48,128.11-72,051.39-28,076.29

Finding the Fourth Proportional to 48,128.11, 72,051.39 and 28,076.29

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Solution

The fourth proportional to 48,128.11, 72,051.39 and 28,076.29 is: 42,032.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,128.11 : 72,051.39 = 28,076.29 : x
  2. Step 2: Convert to fraction form
    48,128.11/72,051.39 = 28,076.29/x
  3. Step 3: Cross multiply
    48,128.11x = 72,051.39 × 28,076.29
  4. Step 4: Simplify right side
    48,128.11x = 2,022,935,720.54
  5. Step 5: Solve for x
    x = 2,022,935,720.54/48,128.11
  6. Step 6: Final answer
    x = 42,032.31

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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.