Home / 74,195.82-102,390.62-40,204.32

Finding the Fourth Proportional to 74,195.82, 102,390.62 and 40,204.32

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Solution

The fourth proportional to 74,195.82, 102,390.62 and 40,204.32 is: 55,482.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,195.82 : 102,390.62 = 40,204.32 : x
  2. Step 2: Convert to fraction form
    74,195.82/102,390.62 = 40,204.32/x
  3. Step 3: Cross multiply
    74,195.82x = 102,390.62 × 40,204.32
  4. Step 4: Simplify right side
    74,195.82x = 4,116,545,251.48
  5. Step 5: Solve for x
    x = 4,116,545,251.48/74,195.82
  6. Step 6: Final answer
    x = 55,482.17

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1.5x scale

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.