Home / 86,023.04-128,896.32-71,093.12

Finding the Fourth Proportional to 86,023.04, 128,896.32 and 71,093.12

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Solution

The fourth proportional to 86,023.04, 128,896.32 and 71,093.12 is: 106,525.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,023.04 : 128,896.32 = 71,093.12 : x
  2. Step 2: Convert to fraction form
    86,023.04/128,896.32 = 71,093.12/x
  3. Step 3: Cross multiply
    86,023.04x = 128,896.32 × 71,093.12
  4. Step 4: Simplify right side
    86,023.04x = 9,163,641,545.32
  5. Step 5: Solve for x
    x = 9,163,641,545.32/86,023.04
  6. Step 6: Final answer
    x = 106,525.43

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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.