Home / 86,960.36-120,058.26-81,599.24

Finding the Fourth Proportional to 86,960.36, 120,058.26 and 81,599.24

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Solution

The fourth proportional to 86,960.36, 120,058.26 and 81,599.24 is: 112,656.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,960.36 : 120,058.26 = 81,599.24 : x
  2. Step 2: Convert to fraction form
    86,960.36/120,058.26 = 81,599.24/x
  3. Step 3: Cross multiply
    86,960.36x = 120,058.26 × 81,599.24
  4. Step 4: Simplify right side
    86,960.36x = 9,796,662,771.72
  5. Step 5: Solve for x
    x = 9,796,662,771.72/86,960.36
  6. Step 6: Final answer
    x = 112,656.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.