Home / 66,520.58-99,777.22-40,218.26

Finding the Fourth Proportional to 66,520.58, 99,777.22 and 40,218.26

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Solution

The fourth proportional to 66,520.58, 99,777.22 and 40,218.26 is: 60,325.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,520.58 : 99,777.22 = 40,218.26 : x
  2. Step 2: Convert to fraction form
    66,520.58/99,777.22 = 40,218.26/x
  3. Step 3: Cross multiply
    66,520.58x = 99,777.22 × 40,218.26
  4. Step 4: Simplify right side
    66,520.58x = 4,012,866,176.04
  5. Step 5: Solve for x
    x = 4,012,866,176.04/66,520.58
  6. Step 6: Final answer
    x = 60,325.18

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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.