Home / 71,285.46-98,372.40-39,020.04

Finding the Fourth Proportional to 71,285.46, 98,372.40 and 39,020.04

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Solution

The fourth proportional to 71,285.46, 98,372.40 and 39,020.04 is: 53,846.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,285.46 : 98,372.40 = 39,020.04 : x
  2. Step 2: Convert to fraction form
    71,285.46/98,372.40 = 39,020.04/x
  3. Step 3: Cross multiply
    71,285.46x = 98,372.40 × 39,020.04
  4. Step 4: Simplify right side
    71,285.46x = 3,838,494,982.90
  5. Step 5: Solve for x
    x = 3,838,494,982.90/71,285.46
  6. Step 6: Final answer
    x = 53,846.82

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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.