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Finding the Fourth Proportional to 99,679.64, 149,482.20 and 40,495.37

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Solution

The fourth proportional to 99,679.64, 149,482.20 and 40,495.37 is: 60,727.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,679.64 : 149,482.20 = 40,495.37 : x
  2. Step 2: Convert to fraction form
    99,679.64/149,482.20 = 40,495.37/x
  3. Step 3: Cross multiply
    99,679.64x = 149,482.20 × 40,495.37
  4. Step 4: Simplify right side
    99,679.64x = 6,053,336,997.41
  5. Step 5: Solve for x
    x = 6,053,336,997.41/99,679.64
  6. Step 6: Final answer
    x = 60,727.92

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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.