Home / 43,643.09-65,452.69-12,045.60

Finding the Fourth Proportional to 43,643.09, 65,452.69 and 12,045.60

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Solution

The fourth proportional to 43,643.09, 65,452.69 and 12,045.60 is: 18,065.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,643.09 : 65,452.69 = 12,045.60 : x
  2. Step 2: Convert to fraction form
    43,643.09/65,452.69 = 12,045.60/x
  3. Step 3: Cross multiply
    43,643.09x = 65,452.69 × 12,045.60
  4. Step 4: Simplify right side
    43,643.09x = 788,416,922.66
  5. Step 5: Solve for x
    x = 788,416,922.66/43,643.09
  6. Step 6: Final answer
    x = 18,065.10

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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.