Home / 86,586.96-129,782.10-36,635.88

Finding the Fourth Proportional to 86,586.96, 129,782.10 and 36,635.88

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Solution

The fourth proportional to 86,586.96, 129,782.10 and 36,635.88 is: 54,912.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,586.96 : 129,782.10 = 36,635.88 : x
  2. Step 2: Convert to fraction form
    86,586.96/129,782.10 = 36,635.88/x
  3. Step 3: Cross multiply
    86,586.96x = 129,782.10 × 36,635.88
  4. Step 4: Simplify right side
    86,586.96x = 4,754,681,441.75
  5. Step 5: Solve for x
    x = 4,754,681,441.75/86,586.96
  6. Step 6: Final answer
    x = 54,912.21

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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.