Home / 49,727.20-74,863-45,372.64

Finding the Fourth Proportional to 49,727.20, 74,863 and 45,372.64

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Solution

The fourth proportional to 49,727.20, 74,863 and 45,372.64 is: 68,307.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,727.20 : 74,863 = 45,372.64 : x
  2. Step 2: Convert to fraction form
    49,727.20/74,863 = 45,372.64/x
  3. Step 3: Cross multiply
    49,727.20x = 74,863 × 45,372.64
  4. Step 4: Simplify right side
    49,727.20x = 3,396,731,948.32
  5. Step 5: Solve for x
    x = 3,396,731,948.32/49,727.20
  6. Step 6: Final answer
    x = 68,307.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.