Home / 71,683.72-98,914.90-39,848.52

Finding the Fourth Proportional to 71,683.72, 98,914.90 and 39,848.52

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Solution

The fourth proportional to 71,683.72, 98,914.90 and 39,848.52 is: 54,986.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,683.72 : 98,914.90 = 39,848.52 : x
  2. Step 2: Convert to fraction form
    71,683.72/98,914.90 = 39,848.52/x
  3. Step 3: Cross multiply
    71,683.72x = 98,914.90 × 39,848.52
  4. Step 4: Simplify right side
    71,683.72x = 3,941,612,370.95
  5. Step 5: Solve for x
    x = 3,941,612,370.95/71,683.72
  6. Step 6: Final answer
    x = 54,986.16

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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.