Home / 50,842.99-70,139.60-31,990.51

Finding the Fourth Proportional to 50,842.99, 70,139.60 and 31,990.51

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Solution

The fourth proportional to 50,842.99, 70,139.60 and 31,990.51 is: 44,131.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,842.99 : 70,139.60 = 31,990.51 : x
  2. Step 2: Convert to fraction form
    50,842.99/70,139.60 = 31,990.51/x
  3. Step 3: Cross multiply
    50,842.99x = 70,139.60 × 31,990.51
  4. Step 4: Simplify right side
    50,842.99x = 2,243,801,415.24
  5. Step 5: Solve for x
    x = 2,243,801,415.24/50,842.99
  6. Step 6: Final answer
    x = 44,131.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.