Home / 66,200.19-91,356.00-38,992.08

Finding the Fourth Proportional to 66,200.19, 91,356.00 and 38,992.08

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Solution

The fourth proportional to 66,200.19, 91,356.00 and 38,992.08 is: 53,808.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,200.19 : 91,356.00 = 38,992.08 : x
  2. Step 2: Convert to fraction form
    66,200.19/91,356.00 = 38,992.08/x
  3. Step 3: Cross multiply
    66,200.19x = 91,356.00 × 38,992.08
  4. Step 4: Simplify right side
    66,200.19x = 3,562,160,876.18
  5. Step 5: Solve for x
    x = 3,562,160,876.18/66,200.19
  6. Step 6: Final answer
    x = 53,808.93

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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.