Home / 49,741.20-74,884.12-45,386.64

Finding the Fourth Proportional to 49,741.20, 74,884.12 and 45,386.64

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Solution

The fourth proportional to 49,741.20, 74,884.12 and 45,386.64 is: 68,328.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,741.20 : 74,884.12 = 45,386.64 : x
  2. Step 2: Convert to fraction form
    49,741.20/74,884.12 = 45,386.64/x
  3. Step 3: Cross multiply
    49,741.20x = 74,884.12 × 45,386.64
  4. Step 4: Simplify right side
    49,741.20x = 3,398,738,596.16
  5. Step 5: Solve for x
    x = 3,398,738,596.16/49,741.20
  6. Step 6: Final answer
    x = 68,328.44

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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.