Home / 55,392.95-76,542.23-39,449.72

Finding the Fourth Proportional to 55,392.95, 76,542.23 and 39,449.72

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Solution

The fourth proportional to 55,392.95, 76,542.23 and 39,449.72 is: 54,511.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,392.95 : 76,542.23 = 39,449.72 : x
  2. Step 2: Convert to fraction form
    55,392.95/76,542.23 = 39,449.72/x
  3. Step 3: Cross multiply
    55,392.95x = 76,542.23 × 39,449.72
  4. Step 4: Simplify right side
    55,392.95x = 3,019,569,831.66
  5. Step 5: Solve for x
    x = 3,019,569,831.66/55,392.95
  6. Step 6: Final answer
    x = 54,511.81

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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.