Home / 55,821.66-76,954.23-39,900.30

Finding the Fourth Proportional to 55,821.66, 76,954.23 and 39,900.30

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Solution

The fourth proportional to 55,821.66, 76,954.23 and 39,900.30 is: 55,005.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,821.66 : 76,954.23 = 39,900.30 : x
  2. Step 2: Convert to fraction form
    55,821.66/76,954.23 = 39,900.30/x
  3. Step 3: Cross multiply
    55,821.66x = 76,954.23 × 39,900.30
  4. Step 4: Simplify right side
    55,821.66x = 3,070,496,863.27
  5. Step 5: Solve for x
    x = 3,070,496,863.27/55,821.66
  6. Step 6: Final answer
    x = 55,005.47

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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.