Home / 55,214.50-76,191.21-31,342.18

Finding the Fourth Proportional to 55,214.50, 76,191.21 and 31,342.18

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Solution

The fourth proportional to 55,214.50, 76,191.21 and 31,342.18 is: 43,249.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,214.50 : 76,191.21 = 31,342.18 : x
  2. Step 2: Convert to fraction form
    55,214.50/76,191.21 = 31,342.18/x
  3. Step 3: Cross multiply
    55,214.50x = 76,191.21 × 31,342.18
  4. Step 4: Simplify right side
    55,214.50x = 2,387,998,618.24
  5. Step 5: Solve for x
    x = 2,387,998,618.24/55,214.50
  6. Step 6: Final answer
    x = 43,249.48

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1.5x scale

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.