Home / 71,120.53-98,142.70-39,283.27

Finding the Fourth Proportional to 71,120.53, 98,142.70 and 39,283.27

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Solution

The fourth proportional to 71,120.53, 98,142.70 and 39,283.27 is: 54,208.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,120.53 : 98,142.70 = 39,283.27 : x
  2. Step 2: Convert to fraction form
    71,120.53/98,142.70 = 39,283.27/x
  3. Step 3: Cross multiply
    71,120.53x = 98,142.70 × 39,283.27
  4. Step 4: Simplify right side
    71,120.53x = 3,855,366,182.63
  5. Step 5: Solve for x
    x = 3,855,366,182.63/71,120.53
  6. Step 6: Final answer
    x = 54,208.91

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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.