Home / 71,103.20-98,123.74-39,271.41

Finding the Fourth Proportional to 71,103.20, 98,123.74 and 39,271.41

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Solution

The fourth proportional to 71,103.20, 98,123.74 and 39,271.41 is: 54,195.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,103.20 : 98,123.74 = 39,271.41 : x
  2. Step 2: Convert to fraction form
    71,103.20/98,123.74 = 39,271.41/x
  3. Step 3: Cross multiply
    71,103.20x = 98,123.74 × 39,271.41
  4. Step 4: Simplify right side
    71,103.20x = 3,853,457,526.09
  5. Step 5: Solve for x
    x = 3,853,457,526.09/71,103.20
  6. Step 6: Final answer
    x = 54,195.28

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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.