Home / 36,071.56-54,102.23-12,378.72

Finding the Fourth Proportional to 36,071.56, 54,102.23 and 12,378.72

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Solution

The fourth proportional to 36,071.56, 54,102.23 and 12,378.72 is: 18,566.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,071.56 : 54,102.23 = 12,378.72 : x
  2. Step 2: Convert to fraction form
    36,071.56/54,102.23 = 12,378.72/x
  3. Step 3: Cross multiply
    36,071.56x = 54,102.23 × 12,378.72
  4. Step 4: Simplify right side
    36,071.56x = 669,716,543.96
  5. Step 5: Solve for x
    x = 669,716,543.96/36,071.56
  6. Step 6: Final answer
    x = 18,566.33

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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.