Home / 82,557.31-113,941.74-66,592.21

Finding the Fourth Proportional to 82,557.31, 113,941.74 and 66,592.21

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Solution

The fourth proportional to 82,557.31, 113,941.74 and 66,592.21 is: 91,907.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,557.31 : 113,941.74 = 66,592.21 : x
  2. Step 2: Convert to fraction form
    82,557.31/113,941.74 = 66,592.21/x
  3. Step 3: Cross multiply
    82,557.31x = 113,941.74 × 66,592.21
  4. Step 4: Simplify right side
    82,557.31x = 7,587,632,277.85
  5. Step 5: Solve for x
    x = 7,587,632,277.85/82,557.31
  6. Step 6: Final answer
    x = 91,907.46

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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.