Home / 84,623.32-126,935.90-40,254.60

Finding the Fourth Proportional to 84,623.32, 126,935.90 and 40,254.60

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Solution

The fourth proportional to 84,623.32, 126,935.90 and 40,254.60 is: 60,382.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,623.32 : 126,935.90 = 40,254.60 : x
  2. Step 2: Convert to fraction form
    84,623.32/126,935.90 = 40,254.60/x
  3. Step 3: Cross multiply
    84,623.32x = 126,935.90 × 40,254.60
  4. Step 4: Simplify right side
    84,623.32x = 5,109,753,880.14
  5. Step 5: Solve for x
    x = 5,109,753,880.14/84,623.32
  6. Step 6: Final answer
    x = 60,382.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.