Home / 74,964.39-103,440.84-48,143.22

Finding the Fourth Proportional to 74,964.39, 103,440.84 and 48,143.22

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Solution

The fourth proportional to 74,964.39, 103,440.84 and 48,143.22 is: 66,431.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,964.39 : 103,440.84 = 48,143.22 : x
  2. Step 2: Convert to fraction form
    74,964.39/103,440.84 = 48,143.22/x
  3. Step 3: Cross multiply
    74,964.39x = 103,440.84 × 48,143.22
  4. Step 4: Simplify right side
    74,964.39x = 4,979,975,117.10
  5. Step 5: Solve for x
    x = 4,979,975,117.10/74,964.39
  6. Step 6: Final answer
    x = 66,431.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.