Home / 86,421.06-129,542.56-33,098.49

Finding the Fourth Proportional to 86,421.06, 129,542.56 and 33,098.49

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Solution

The fourth proportional to 86,421.06, 129,542.56 and 33,098.49 is: 49,613.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,421.06 : 129,542.56 = 33,098.49 : x
  2. Step 2: Convert to fraction form
    86,421.06/129,542.56 = 33,098.49/x
  3. Step 3: Cross multiply
    86,421.06x = 129,542.56 × 33,098.49
  4. Step 4: Simplify right side
    86,421.06x = 4,287,663,043.99
  5. Step 5: Solve for x
    x = 4,287,663,043.99/86,421.06
  6. Step 6: Final answer
    x = 49,613.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.