Home / 48,437.13-72,755.31-31,820.79

Finding the Fourth Proportional to 48,437.13, 72,755.31 and 31,820.79

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Solution

The fourth proportional to 48,437.13, 72,755.31 and 31,820.79 is: 47,796.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,437.13 : 72,755.31 = 31,820.79 : x
  2. Step 2: Convert to fraction form
    48,437.13/72,755.31 = 31,820.79/x
  3. Step 3: Cross multiply
    48,437.13x = 72,755.31 × 31,820.79
  4. Step 4: Simplify right side
    48,437.13x = 2,315,131,440.89
  5. Step 5: Solve for x
    x = 2,315,131,440.89/48,437.13
  6. Step 6: Final answer
    x = 47,796.63

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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.