Home / 55,721.18-76,809.90-34,170.96

Finding the Fourth Proportional to 55,721.18, 76,809.90 and 34,170.96

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Solution

The fourth proportional to 55,721.18, 76,809.90 and 34,170.96 is: 47,103.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,721.18 : 76,809.90 = 34,170.96 : x
  2. Step 2: Convert to fraction form
    55,721.18/76,809.90 = 34,170.96/x
  3. Step 3: Cross multiply
    55,721.18x = 76,809.90 × 34,170.96
  4. Step 4: Simplify right side
    55,721.18x = 2,624,668,436.68
  5. Step 5: Solve for x
    x = 2,624,668,436.68/55,721.18
  6. Step 6: Final answer
    x = 47,103.60

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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.