Home / 54,863.15-82,315.20-21,606.39

Finding the Fourth Proportional to 54,863.15, 82,315.20 and 21,606.39

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Solution

The fourth proportional to 54,863.15, 82,315.20 and 21,606.39 is: 32,417.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,863.15 : 82,315.20 = 21,606.39 : x
  2. Step 2: Convert to fraction form
    54,863.15/82,315.20 = 21,606.39/x
  3. Step 3: Cross multiply
    54,863.15x = 82,315.20 × 21,606.39
  4. Step 4: Simplify right side
    54,863.15x = 1,778,534,314.13
  5. Step 5: Solve for x
    x = 1,778,534,314.13/54,863.15
  6. Step 6: Final answer
    x = 32,417.65

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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.