Home / 75,155.08-103,715.22-41,621.80

Finding the Fourth Proportional to 75,155.08, 103,715.22 and 41,621.80

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Solution

The fourth proportional to 75,155.08, 103,715.22 and 41,621.80 is: 57,438.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,155.08 : 103,715.22 = 41,621.80 : x
  2. Step 2: Convert to fraction form
    75,155.08/103,715.22 = 41,621.80/x
  3. Step 3: Cross multiply
    75,155.08x = 103,715.22 × 41,621.80
  4. Step 4: Simplify right side
    75,155.08x = 4,316,814,143.80
  5. Step 5: Solve for x
    x = 4,316,814,143.80/75,155.08
  6. Step 6: Final answer
    x = 57,438.75

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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.