Home / 54,145.20-81,205.65-35,555.70

Finding the Fourth Proportional to 54,145.20, 81,205.65 and 35,555.70

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Solution

The fourth proportional to 54,145.20, 81,205.65 and 35,555.70 is: 53,325.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,145.20 : 81,205.65 = 35,555.70 : x
  2. Step 2: Convert to fraction form
    54,145.20/81,205.65 = 35,555.70/x
  3. Step 3: Cross multiply
    54,145.20x = 81,205.65 × 35,555.70
  4. Step 4: Simplify right side
    54,145.20x = 2,887,323,729.71
  5. Step 5: Solve for x
    x = 2,887,323,729.71/54,145.20
  6. Step 6: Final answer
    x = 53,325.57

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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.