Home / 71,638.56-98,853.68-41,419.20

Finding the Fourth Proportional to 71,638.56, 98,853.68 and 41,419.20

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Solution

The fourth proportional to 71,638.56, 98,853.68 and 41,419.20 is: 57,154.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,638.56 : 98,853.68 = 41,419.20 : x
  2. Step 2: Convert to fraction form
    71,638.56/98,853.68 = 41,419.20/x
  3. Step 3: Cross multiply
    71,638.56x = 98,853.68 × 41,419.20
  4. Step 4: Simplify right side
    71,638.56x = 4,094,440,342.66
  5. Step 5: Solve for x
    x = 4,094,440,342.66/71,638.56
  6. Step 6: Final answer
    x = 57,154.14

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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.