Home / 57,155.10-85,619.25-38,121.18

Finding the Fourth Proportional to 57,155.10, 85,619.25 and 38,121.18

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Solution

The fourth proportional to 57,155.10, 85,619.25 and 38,121.18 is: 57,106.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,155.10 : 85,619.25 = 38,121.18 : x
  2. Step 2: Convert to fraction form
    57,155.10/85,619.25 = 38,121.18/x
  3. Step 3: Cross multiply
    57,155.10x = 85,619.25 × 38,121.18
  4. Step 4: Simplify right side
    57,155.10x = 3,263,906,840.72
  5. Step 5: Solve for x
    x = 3,263,906,840.72/57,155.10
  6. Step 6: Final answer
    x = 57,106.13

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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.