Home / 54,429.15-75,112.22-30,555.80

Finding the Fourth Proportional to 54,429.15, 75,112.22 and 30,555.80

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Solution

The fourth proportional to 54,429.15, 75,112.22 and 30,555.80 is: 42,167.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,429.15 : 75,112.22 = 30,555.80 : x
  2. Step 2: Convert to fraction form
    54,429.15/75,112.22 = 30,555.80/x
  3. Step 3: Cross multiply
    54,429.15x = 75,112.22 × 30,555.80
  4. Step 4: Simplify right side
    54,429.15x = 2,295,113,971.88
  5. Step 5: Solve for x
    x = 2,295,113,971.88/54,429.15
  6. Step 6: Final answer
    x = 42,167.00

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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.