Home / 55,363.28-76,400.88-31,489.94

Finding the Fourth Proportional to 55,363.28, 76,400.88 and 31,489.94

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Solution

The fourth proportional to 55,363.28, 76,400.88 and 31,489.94 is: 43,455.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,363.28 : 76,400.88 = 31,489.94 : x
  2. Step 2: Convert to fraction form
    55,363.28/76,400.88 = 31,489.94/x
  3. Step 3: Cross multiply
    55,363.28x = 76,400.88 × 31,489.94
  4. Step 4: Simplify right side
    55,363.28x = 2,405,859,127.15
  5. Step 5: Solve for x
    x = 2,405,859,127.15/55,363.28
  6. Step 6: Final answer
    x = 43,455.86

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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.