Home / 71,637.59-98,857.91-39,805.67

Finding the Fourth Proportional to 71,637.59, 98,857.91 and 39,805.67

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Solution

The fourth proportional to 71,637.59, 98,857.91 and 39,805.67 is: 54,930.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,637.59 : 98,857.91 = 39,805.67 : x
  2. Step 2: Convert to fraction form
    71,637.59/98,857.91 = 39,805.67/x
  3. Step 3: Cross multiply
    71,637.59x = 98,857.91 × 39,805.67
  4. Step 4: Simplify right side
    71,637.59x = 3,935,104,649.03
  5. Step 5: Solve for x
    x = 3,935,104,649.03/71,637.59
  6. Step 6: Final answer
    x = 54,930.73

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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.