Home / 66,631.32-99,897.57-40,329.81

Finding the Fourth Proportional to 66,631.32, 99,897.57 and 40,329.81

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Solution

The fourth proportional to 66,631.32, 99,897.57 and 40,329.81 is: 60,464.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,631.32 : 99,897.57 = 40,329.81 : x
  2. Step 2: Convert to fraction form
    66,631.32/99,897.57 = 40,329.81/x
  3. Step 3: Cross multiply
    66,631.32x = 99,897.57 × 40,329.81
  4. Step 4: Simplify right side
    66,631.32x = 4,028,850,017.56
  5. Step 5: Solve for x
    x = 4,028,850,017.56/66,631.32
  6. Step 6: Final answer
    x = 60,464.81

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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.