Home / 43,840.36-65,705.18-28,039.40

Finding the Fourth Proportional to 43,840.36, 65,705.18 and 28,039.40

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Solution

The fourth proportional to 43,840.36, 65,705.18 and 28,039.40 is: 42,023.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,840.36 : 65,705.18 = 28,039.40 : x
  2. Step 2: Convert to fraction form
    43,840.36/65,705.18 = 28,039.40/x
  3. Step 3: Cross multiply
    43,840.36x = 65,705.18 × 28,039.40
  4. Step 4: Simplify right side
    43,840.36x = 1,842,333,824.09
  5. Step 5: Solve for x
    x = 1,842,333,824.09/43,840.36
  6. Step 6: Final answer
    x = 42,023.69

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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.