Home / 69,126.51-103,695.39-19,206.61

Finding the Fourth Proportional to 69,126.51, 103,695.39 and 19,206.61

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Solution

The fourth proportional to 69,126.51, 103,695.39 and 19,206.61 is: 28,811.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,126.51 : 103,695.39 = 19,206.61 : x
  2. Step 2: Convert to fraction form
    69,126.51/103,695.39 = 19,206.61/x
  3. Step 3: Cross multiply
    69,126.51x = 103,695.39 × 19,206.61
  4. Step 4: Simplify right side
    69,126.51x = 1,991,636,946.93
  5. Step 5: Solve for x
    x = 1,991,636,946.93/69,126.51
  6. Step 6: Final answer
    x = 28,811.48

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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.