Home / 57,987.77-87,015.13-31,333.84

Finding the Fourth Proportional to 57,987.77, 87,015.13 and 31,333.84

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Solution

The fourth proportional to 57,987.77, 87,015.13 and 31,333.84 is: 47,018.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,987.77 : 87,015.13 = 31,333.84 : x
  2. Step 2: Convert to fraction form
    57,987.77/87,015.13 = 31,333.84/x
  3. Step 3: Cross multiply
    57,987.77x = 87,015.13 × 31,333.84
  4. Step 4: Simplify right side
    57,987.77x = 2,726,517,865.13
  5. Step 5: Solve for x
    x = 2,726,517,865.13/57,987.77
  6. Step 6: Final answer
    x = 47,018.85

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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.