Home / 71,647.16-98,871.09-39,815.24

Finding the Fourth Proportional to 71,647.16, 98,871.09 and 39,815.24

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Solution

The fourth proportional to 71,647.16, 98,871.09 and 39,815.24 is: 54,943.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,647.16 : 98,871.09 = 39,815.24 : x
  2. Step 2: Convert to fraction form
    71,647.16/98,871.09 = 39,815.24/x
  3. Step 3: Cross multiply
    71,647.16x = 98,871.09 × 39,815.24
  4. Step 4: Simplify right side
    71,647.16x = 3,936,575,683.06
  5. Step 5: Solve for x
    x = 3,936,575,683.06/71,647.16
  6. Step 6: Final answer
    x = 54,943.92

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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.