Home / 55,730.20-76,831.74-39,786.94

Finding the Fourth Proportional to 55,730.20, 76,831.74 and 39,786.94

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Solution

The fourth proportional to 55,730.20, 76,831.74 and 39,786.94 is: 54,851.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,730.20 : 76,831.74 = 39,786.94 : x
  2. Step 2: Convert to fraction form
    55,730.20/76,831.74 = 39,786.94/x
  3. Step 3: Cross multiply
    55,730.20x = 76,831.74 × 39,786.94
  4. Step 4: Simplify right side
    55,730.20x = 3,056,899,829.48
  5. Step 5: Solve for x
    x = 3,056,899,829.48/55,730.20
  6. Step 6: Final answer
    x = 54,851.76

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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.