Home / 75,147.75-103,705.11-41,155.65

Finding the Fourth Proportional to 75,147.75, 103,705.11 and 41,155.65

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Solution

The fourth proportional to 75,147.75, 103,705.11 and 41,155.65 is: 56,795.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,147.75 : 103,705.11 = 41,155.65 : x
  2. Step 2: Convert to fraction form
    75,147.75/103,705.11 = 41,155.65/x
  3. Step 3: Cross multiply
    75,147.75x = 103,705.11 × 41,155.65
  4. Step 4: Simplify right side
    75,147.75x = 4,268,051,210.37
  5. Step 5: Solve for x
    x = 4,268,051,210.37/75,147.75
  6. Step 6: Final answer
    x = 56,795.46

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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.