Home / 55,243.32-82,440.30-54,927.78

Finding the Fourth Proportional to 55,243.32, 82,440.30 and 54,927.78

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Solution

The fourth proportional to 55,243.32, 82,440.30 and 54,927.78 is: 81,969.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,243.32 : 82,440.30 = 54,927.78 : x
  2. Step 2: Convert to fraction form
    55,243.32/82,440.30 = 54,927.78/x
  3. Step 3: Cross multiply
    55,243.32x = 82,440.30 × 54,927.78
  4. Step 4: Simplify right side
    55,243.32x = 4,528,262,661.53
  5. Step 5: Solve for x
    x = 4,528,262,661.53/55,243.32
  6. Step 6: Final answer
    x = 81,969.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.