Home / 74,867.20-112,294.32-30,498.64

Finding the Fourth Proportional to 74,867.20, 112,294.32 and 30,498.64

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Solution

The fourth proportional to 74,867.20, 112,294.32 and 30,498.64 is: 45,745.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,867.20 : 112,294.32 = 30,498.64 : x
  2. Step 2: Convert to fraction form
    74,867.20/112,294.32 = 30,498.64/x
  3. Step 3: Cross multiply
    74,867.20x = 112,294.32 × 30,498.64
  4. Step 4: Simplify right side
    74,867.20x = 3,424,824,039.72
  5. Step 5: Solve for x
    x = 3,424,824,039.72/74,867.20
  6. Step 6: Final answer
    x = 45,745.32

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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.