Home / 48,051.88-72,040.48-31,149.20

Finding the Fourth Proportional to 48,051.88, 72,040.48 and 31,149.20

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Solution

The fourth proportional to 48,051.88, 72,040.48 and 31,149.20 is: 46,699.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,051.88 : 72,040.48 = 31,149.20 : x
  2. Step 2: Convert to fraction form
    48,051.88/72,040.48 = 31,149.20/x
  3. Step 3: Cross multiply
    48,051.88x = 72,040.48 × 31,149.20
  4. Step 4: Simplify right side
    48,051.88x = 2,244,003,319.62
  5. Step 5: Solve for x
    x = 2,244,003,319.62/48,051.88
  6. Step 6: Final answer
    x = 46,699.59

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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.