Home / 86,145.57-129,220.77-23,816.07

Finding the Fourth Proportional to 86,145.57, 129,220.77 and 23,816.07

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Solution

The fourth proportional to 86,145.57, 129,220.77 and 23,816.07 is: 35,724.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,145.57 : 129,220.77 = 23,816.07 : x
  2. Step 2: Convert to fraction form
    86,145.57/129,220.77 = 23,816.07/x
  3. Step 3: Cross multiply
    86,145.57x = 129,220.77 × 23,816.07
  4. Step 4: Simplify right side
    86,145.57x = 3,077,530,903.77
  5. Step 5: Solve for x
    x = 3,077,530,903.77/86,145.57
  6. Step 6: Final answer
    x = 35,724.77

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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.