Home / 86,821.25-130,143.03-58,744.26

Finding the Fourth Proportional to 86,821.25, 130,143.03 and 58,744.26

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Solution

The fourth proportional to 86,821.25, 130,143.03 and 58,744.26 is: 88,056.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,821.25 : 130,143.03 = 58,744.26 : x
  2. Step 2: Convert to fraction form
    86,821.25/130,143.03 = 58,744.26/x
  3. Step 3: Cross multiply
    86,821.25x = 130,143.03 × 58,744.26
  4. Step 4: Simplify right side
    86,821.25x = 7,645,155,991.51
  5. Step 5: Solve for x
    x = 7,645,155,991.51/86,821.25
  6. Step 6: Final answer
    x = 88,056.28

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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.