Home / 74,879.51-112,288.05-30,476.12

Finding the Fourth Proportional to 74,879.51, 112,288.05 and 30,476.12

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Solution

The fourth proportional to 74,879.51, 112,288.05 and 30,476.12 is: 45,701.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,879.51 : 112,288.05 = 30,476.12 : x
  2. Step 2: Convert to fraction form
    74,879.51/112,288.05 = 30,476.12/x
  3. Step 3: Cross multiply
    74,879.51x = 112,288.05 × 30,476.12
  4. Step 4: Simplify right side
    74,879.51x = 3,422,103,524.93
  5. Step 5: Solve for x
    x = 3,422,103,524.93/74,879.51
  6. Step 6: Final answer
    x = 45,701.47

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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.