Home / 74,216-102,418.32-40,225.04

Finding the Fourth Proportional to 74,216, 102,418.32 and 40,225.04

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Solution

The fourth proportional to 74,216, 102,418.32 and 40,225.04 is: 55,510.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,216 : 102,418.32 = 40,225.04 : x
  2. Step 2: Convert to fraction form
    74,216/102,418.32 = 40,225.04/x
  3. Step 3: Cross multiply
    74,216x = 102,418.32 × 40,225.04
  4. Step 4: Simplify right side
    74,216x = 4,119,781,018.73
  5. Step 5: Solve for x
    x = 4,119,781,018.73/74,216
  6. Step 6: Final answer
    x = 55,510.69

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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.