Home / 75,010.32-112,506.78-19,610.64

Finding the Fourth Proportional to 75,010.32, 112,506.78 and 19,610.64

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Solution

The fourth proportional to 75,010.32, 112,506.78 and 19,610.64 is: 29,413.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,010.32 : 112,506.78 = 19,610.64 : x
  2. Step 2: Convert to fraction form
    75,010.32/112,506.78 = 19,610.64/x
  3. Step 3: Cross multiply
    75,010.32x = 112,506.78 × 19,610.64
  4. Step 4: Simplify right side
    75,010.32x = 2,206,329,960.14
  5. Step 5: Solve for x
    x = 2,206,329,960.14/75,010.32
  6. Step 6: Final answer
    x = 29,413.69

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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.