Home / 71,186.06-98,238.82-39,357.01

Finding the Fourth Proportional to 71,186.06, 98,238.82 and 39,357.01

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Solution

The fourth proportional to 71,186.06, 98,238.82 and 39,357.01 is: 54,313.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,186.06 : 98,238.82 = 39,357.01 : x
  2. Step 2: Convert to fraction form
    71,186.06/98,238.82 = 39,357.01/x
  3. Step 3: Cross multiply
    71,186.06x = 98,238.82 × 39,357.01
  4. Step 4: Simplify right side
    71,186.06x = 3,866,386,319.33
  5. Step 5: Solve for x
    x = 3,866,386,319.33/71,186.06
  6. Step 6: Final answer
    x = 54,313.81

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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.