Home / 86,582.28-129,887.08-36,662.66

Finding the Fourth Proportional to 86,582.28, 129,887.08 and 36,662.66

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Solution

The fourth proportional to 86,582.28, 129,887.08 and 36,662.66 is: 54,999.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,582.28 : 129,887.08 = 36,662.66 : x
  2. Step 2: Convert to fraction form
    86,582.28/129,887.08 = 36,662.66/x
  3. Step 3: Cross multiply
    86,582.28x = 129,887.08 × 36,662.66
  4. Step 4: Simplify right side
    86,582.28x = 4,762,005,852.43
  5. Step 5: Solve for x
    x = 4,762,005,852.43/86,582.28
  6. Step 6: Final answer
    x = 54,999.77

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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.