Home / 71,881.35-99,196.93-39,617.15

Finding the Fourth Proportional to 71,881.35, 99,196.93 and 39,617.15

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Solution

The fourth proportional to 71,881.35, 99,196.93 and 39,617.15 is: 54,672.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,881.35 : 99,196.93 = 39,617.15 : x
  2. Step 2: Convert to fraction form
    71,881.35/99,196.93 = 39,617.15/x
  3. Step 3: Cross multiply
    71,881.35x = 99,196.93 × 39,617.15
  4. Step 4: Simplify right side
    71,881.35x = 3,929,899,655.35
  5. Step 5: Solve for x
    x = 3,929,899,655.35/71,881.35
  6. Step 6: Final answer
    x = 54,672.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.