Home / 71,664.45-98,896.46-39,835.23

Finding the Fourth Proportional to 71,664.45, 98,896.46 and 39,835.23

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Solution

The fourth proportional to 71,664.45, 98,896.46 and 39,835.23 is: 54,972.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,664.45 : 98,896.46 = 39,835.23 : x
  2. Step 2: Convert to fraction form
    71,664.45/98,896.46 = 39,835.23/x
  3. Step 3: Cross multiply
    71,664.45x = 98,896.46 × 39,835.23
  4. Step 4: Simplify right side
    71,664.45x = 3,939,563,031.11
  5. Step 5: Solve for x
    x = 3,939,563,031.11/71,664.45
  6. Step 6: Final answer
    x = 54,972.35

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1.5x scale

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.