Home / 86,276.94-129,323.25-61,578.06

Finding the Fourth Proportional to 86,276.94, 129,323.25 and 61,578.06

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Solution

The fourth proportional to 86,276.94, 129,323.25 and 61,578.06 is: 92,301.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,276.94 : 129,323.25 = 61,578.06 : x
  2. Step 2: Convert to fraction form
    86,276.94/129,323.25 = 61,578.06/x
  3. Step 3: Cross multiply
    86,276.94x = 129,323.25 × 61,578.06
  4. Step 4: Simplify right side
    86,276.94x = 7,963,474,847.90
  5. Step 5: Solve for x
    x = 7,963,474,847.90/86,276.94
  6. Step 6: Final answer
    x = 92,301.31

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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.