Home / 71,021.10-98,008.99-39,189.96

Finding the Fourth Proportional to 71,021.10, 98,008.99 and 39,189.96

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Solution

The fourth proportional to 71,021.10, 98,008.99 and 39,189.96 is: 54,082.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,021.10 : 98,008.99 = 39,189.96 : x
  2. Step 2: Convert to fraction form
    71,021.10/98,008.99 = 39,189.96/x
  3. Step 3: Cross multiply
    71,021.10x = 98,008.99 × 39,189.96
  4. Step 4: Simplify right side
    71,021.10x = 3,840,968,397.74
  5. Step 5: Solve for x
    x = 3,840,968,397.74/71,021.10
  6. Step 6: Final answer
    x = 54,082.07

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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.