Home / 55,685.93-76,845.65-31,486.50

Finding the Fourth Proportional to 55,685.93, 76,845.65 and 31,486.50

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Solution

The fourth proportional to 55,685.93, 76,845.65 and 31,486.50 is: 43,450.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,685.93 : 76,845.65 = 31,486.50 : x
  2. Step 2: Convert to fraction form
    55,685.93/76,845.65 = 31,486.50/x
  3. Step 3: Cross multiply
    55,685.93x = 76,845.65 × 31,486.50
  4. Step 4: Simplify right side
    55,685.93x = 2,419,600,401.29
  5. Step 5: Solve for x
    x = 2,419,600,401.29/55,685.93
  6. Step 6: Final answer
    x = 43,450.84

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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.