Home / 61,154.85-91,741.41-21,708.66

Finding the Fourth Proportional to 61,154.85, 91,741.41 and 21,708.66

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Solution

The fourth proportional to 61,154.85, 91,741.41 and 21,708.66 is: 32,566.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,154.85 : 91,741.41 = 21,708.66 : x
  2. Step 2: Convert to fraction form
    61,154.85/91,741.41 = 21,708.66/x
  3. Step 3: Cross multiply
    61,154.85x = 91,741.41 × 21,708.66
  4. Step 4: Simplify right side
    61,154.85x = 1,991,583,077.61
  5. Step 5: Solve for x
    x = 1,991,583,077.61/61,154.85
  6. Step 6: Final answer
    x = 32,566.23

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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.