Home / 66,431.37-99,506.52-53,726.61

Finding the Fourth Proportional to 66,431.37, 99,506.52 and 53,726.61

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Solution

The fourth proportional to 66,431.37, 99,506.52 and 53,726.61 is: 80,476.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,431.37 : 99,506.52 = 53,726.61 : x
  2. Step 2: Convert to fraction form
    66,431.37/99,506.52 = 53,726.61/x
  3. Step 3: Cross multiply
    66,431.37x = 99,506.52 × 53,726.61
  4. Step 4: Simplify right side
    66,431.37x = 5,346,147,992.50
  5. Step 5: Solve for x
    x = 5,346,147,992.50/66,431.37
  6. Step 6: Final answer
    x = 80,476.26

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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.