Home / 43,116.32-64,708-19,744.08

Finding the Fourth Proportional to 43,116.32, 64,708 and 19,744.08

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Solution

The fourth proportional to 43,116.32, 64,708 and 19,744.08 is: 29,631.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,116.32 : 64,708 = 19,744.08 : x
  2. Step 2: Convert to fraction form
    43,116.32/64,708 = 19,744.08/x
  3. Step 3: Cross multiply
    43,116.32x = 64,708 × 19,744.08
  4. Step 4: Simplify right side
    43,116.32x = 1,277,599,928.64
  5. Step 5: Solve for x
    x = 1,277,599,928.64/43,116.32
  6. Step 6: Final answer
    x = 29,631.47

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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.