Home / 86,003.35-128,954.54-26,013.77

Finding the Fourth Proportional to 86,003.35, 128,954.54 and 26,013.77

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Solution

The fourth proportional to 86,003.35, 128,954.54 and 26,013.77 is: 39,005.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,003.35 : 128,954.54 = 26,013.77 : x
  2. Step 2: Convert to fraction form
    86,003.35/128,954.54 = 26,013.77/x
  3. Step 3: Cross multiply
    86,003.35x = 128,954.54 × 26,013.77
  4. Step 4: Simplify right side
    86,003.35x = 3,354,593,744.02
  5. Step 5: Solve for x
    x = 3,354,593,744.02/86,003.35
  6. Step 6: Final answer
    x = 39,005.38

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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.