Home / 69,242.09-103,880.65-19,322.18

Finding the Fourth Proportional to 69,242.09, 103,880.65 and 19,322.18

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Solution

The fourth proportional to 69,242.09, 103,880.65 and 19,322.18 is: 28,988.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,242.09 : 103,880.65 = 19,322.18 : x
  2. Step 2: Convert to fraction form
    69,242.09/103,880.65 = 19,322.18/x
  3. Step 3: Cross multiply
    69,242.09x = 103,880.65 × 19,322.18
  4. Step 4: Simplify right side
    69,242.09x = 2,007,200,098.41
  5. Step 5: Solve for x
    x = 2,007,200,098.41/69,242.09
  6. Step 6: Final answer
    x = 28,988.15

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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.