Home / 66,490.26-99,686.10-40,188.84

Finding the Fourth Proportional to 66,490.26, 99,686.10 and 40,188.84

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Solution

The fourth proportional to 66,490.26, 99,686.10 and 40,188.84 is: 60,253.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,490.26 : 99,686.10 = 40,188.84 : x
  2. Step 2: Convert to fraction form
    66,490.26/99,686.10 = 40,188.84/x
  3. Step 3: Cross multiply
    66,490.26x = 99,686.10 × 40,188.84
  4. Step 4: Simplify right side
    66,490.26x = 4,006,268,723.12
  5. Step 5: Solve for x
    x = 4,006,268,723.12/66,490.26
  6. Step 6: Final answer
    x = 60,253.47

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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.