Home / 43,718.53-65,577.84-18,742.45

Finding the Fourth Proportional to 43,718.53, 65,577.84 and 18,742.45

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Solution

The fourth proportional to 43,718.53, 65,577.84 and 18,742.45 is: 28,113.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,718.53 : 65,577.84 = 18,742.45 : x
  2. Step 2: Convert to fraction form
    43,718.53/65,577.84 = 18,742.45/x
  3. Step 3: Cross multiply
    43,718.53x = 65,577.84 × 18,742.45
  4. Step 4: Simplify right side
    43,718.53x = 1,229,089,387.31
  5. Step 5: Solve for x
    x = 1,229,089,387.31/43,718.53
  6. Step 6: Final answer
    x = 28,113.69

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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.