Home / 51,381.83-77,074.32-13,941.75

Finding the Fourth Proportional to 51,381.83, 77,074.32 and 13,941.75

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Solution

The fourth proportional to 51,381.83, 77,074.32 and 13,941.75 is: 20,913.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,381.83 : 77,074.32 = 13,941.75 : x
  2. Step 2: Convert to fraction form
    51,381.83/77,074.32 = 13,941.75/x
  3. Step 3: Cross multiply
    51,381.83x = 77,074.32 × 13,941.75
  4. Step 4: Simplify right side
    51,381.83x = 1,074,550,900.86
  5. Step 5: Solve for x
    x = 1,074,550,900.86/51,381.83
  6. Step 6: Final answer
    x = 20,913.05

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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.