Home / 55,872.18-83,809.35-20,804.85

Finding the Fourth Proportional to 55,872.18, 83,809.35 and 20,804.85

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Solution

The fourth proportional to 55,872.18, 83,809.35 and 20,804.85 is: 31,207.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,872.18 : 83,809.35 = 20,804.85 : x
  2. Step 2: Convert to fraction form
    55,872.18/83,809.35 = 20,804.85/x
  3. Step 3: Cross multiply
    55,872.18x = 83,809.35 × 20,804.85
  4. Step 4: Simplify right side
    55,872.18x = 1,743,640,955.35
  5. Step 5: Solve for x
    x = 1,743,640,955.35/55,872.18
  6. Step 6: Final answer
    x = 31,207.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.