Home / 66,566.30-99,719.85-40,192.70

Finding the Fourth Proportional to 66,566.30, 99,719.85 and 40,192.70

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Solution

The fourth proportional to 66,566.30, 99,719.85 and 40,192.70 is: 60,210.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,566.30 : 99,719.85 = 40,192.70 : x
  2. Step 2: Convert to fraction form
    66,566.30/99,719.85 = 40,192.70/x
  3. Step 3: Cross multiply
    66,566.30x = 99,719.85 × 40,192.70
  4. Step 4: Simplify right side
    66,566.30x = 4,008,010,015.10
  5. Step 5: Solve for x
    x = 4,008,010,015.10/66,566.30
  6. Step 6: Final answer
    x = 60,210.80

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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.