Home / 66,574.20-99,861.30-40,330.20

Finding the Fourth Proportional to 66,574.20, 99,861.30 and 40,330.20

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Solution

The fourth proportional to 66,574.20, 99,861.30 and 40,330.20 is: 60,495.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,574.20 : 99,861.30 = 40,330.20 : x
  2. Step 2: Convert to fraction form
    66,574.20/99,861.30 = 40,330.20/x
  3. Step 3: Cross multiply
    66,574.20x = 99,861.30 × 40,330.20
  4. Step 4: Simplify right side
    66,574.20x = 4,027,426,201.26
  5. Step 5: Solve for x
    x = 4,027,426,201.26/66,574.20
  6. Step 6: Final answer
    x = 60,495.30

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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.