Home / 69,330.94-103,988.37-19,415.03

Finding the Fourth Proportional to 69,330.94, 103,988.37 and 19,415.03

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Solution

The fourth proportional to 69,330.94, 103,988.37 and 19,415.03 is: 29,120.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,330.94 : 103,988.37 = 19,415.03 : x
  2. Step 2: Convert to fraction form
    69,330.94/103,988.37 = 19,415.03/x
  3. Step 3: Cross multiply
    69,330.94x = 103,988.37 × 19,415.03
  4. Step 4: Simplify right side
    69,330.94x = 2,018,937,323.20
  5. Step 5: Solve for x
    x = 2,018,937,323.20/69,330.94
  6. Step 6: Final answer
    x = 29,120.30

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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.