Home / 74,364.62-102,622.45-40,372.37

Finding the Fourth Proportional to 74,364.62, 102,622.45 and 40,372.37

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Solution

The fourth proportional to 74,364.62, 102,622.45 and 40,372.37 is: 55,713.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,364.62 : 102,622.45 = 40,372.37 : x
  2. Step 2: Convert to fraction form
    74,364.62/102,622.45 = 40,372.37/x
  3. Step 3: Cross multiply
    74,364.62x = 102,622.45 × 40,372.37
  4. Step 4: Simplify right side
    74,364.62x = 4,143,111,521.71
  5. Step 5: Solve for x
    x = 4,143,111,521.71/74,364.62
  6. Step 6: Final answer
    x = 55,713.48

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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.