Home / 86,181.93-129,140.91-57,997.53

Finding the Fourth Proportional to 86,181.93, 129,140.91 and 57,997.53

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Solution

The fourth proportional to 86,181.93, 129,140.91 and 57,997.53 is: 86,907.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,181.93 : 129,140.91 = 57,997.53 : x
  2. Step 2: Convert to fraction form
    86,181.93/129,140.91 = 57,997.53/x
  3. Step 3: Cross multiply
    86,181.93x = 129,140.91 × 57,997.53
  4. Step 4: Simplify right side
    86,181.93x = 7,489,853,801.95
  5. Step 5: Solve for x
    x = 7,489,853,801.95/86,181.93
  6. Step 6: Final answer
    x = 86,907.47

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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.