Home / 55,315.80-76,340.34-31,449.96

Finding the Fourth Proportional to 55,315.80, 76,340.34 and 31,449.96

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Solution

The fourth proportional to 55,315.80, 76,340.34 and 31,449.96 is: 43,403.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,315.80 : 76,340.34 = 31,449.96 : x
  2. Step 2: Convert to fraction form
    55,315.80/76,340.34 = 31,449.96/x
  3. Step 3: Cross multiply
    55,315.80x = 76,340.34 × 31,449.96
  4. Step 4: Simplify right side
    55,315.80x = 2,400,900,639.39
  5. Step 5: Solve for x
    x = 2,400,900,639.39/55,315.80
  6. Step 6: Final answer
    x = 43,403.52

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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.