Home / 86,441.18-129,659.48-36,507.86

Finding the Fourth Proportional to 86,441.18, 129,659.48 and 36,507.86

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Solution

The fourth proportional to 86,441.18, 129,659.48 and 36,507.86 is: 54,760.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,441.18 : 129,659.48 = 36,507.86 : x
  2. Step 2: Convert to fraction form
    86,441.18/129,659.48 = 36,507.86/x
  3. Step 3: Cross multiply
    86,441.18x = 129,659.48 × 36,507.86
  4. Step 4: Simplify right side
    86,441.18x = 4,733,590,870.49
  5. Step 5: Solve for x
    x = 4,733,590,870.49/86,441.18
  6. Step 6: Final answer
    x = 54,760.83

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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.