Home / 46,742.72-70,072.32-20,426.62

Finding the Fourth Proportional to 46,742.72, 70,072.32 and 20,426.62

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Solution

The fourth proportional to 46,742.72, 70,072.32 and 20,426.62 is: 30,621.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,742.72 : 70,072.32 = 20,426.62 : x
  2. Step 2: Convert to fraction form
    46,742.72/70,072.32 = 20,426.62/x
  3. Step 3: Cross multiply
    46,742.72x = 70,072.32 × 20,426.62
  4. Step 4: Simplify right side
    46,742.72x = 1,431,340,653.16
  5. Step 5: Solve for x
    x = 1,431,340,653.16/46,742.72
  6. Step 6: Final answer
    x = 30,621.68

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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.