Home / 86,593.32-129,890.93-30,435.03

Finding the Fourth Proportional to 86,593.32, 129,890.93 and 30,435.03

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Solution

The fourth proportional to 86,593.32, 129,890.93 and 30,435.03 is: 45,652.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,593.32 : 129,890.93 = 30,435.03 : x
  2. Step 2: Convert to fraction form
    86,593.32/129,890.93 = 30,435.03/x
  3. Step 3: Cross multiply
    86,593.32x = 129,890.93 × 30,435.03
  4. Step 4: Simplify right side
    86,593.32x = 3,953,234,351.28
  5. Step 5: Solve for x
    x = 3,953,234,351.28/86,593.32
  6. Step 6: Final answer
    x = 45,652.88

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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.