Home / 69,029.04-103,543.71-19,109.28

Finding the Fourth Proportional to 69,029.04, 103,543.71 and 19,109.28

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Solution

The fourth proportional to 69,029.04, 103,543.71 and 19,109.28 is: 28,663.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,029.04 : 103,543.71 = 19,109.28 : x
  2. Step 2: Convert to fraction form
    69,029.04/103,543.71 = 19,109.28/x
  3. Step 3: Cross multiply
    69,029.04x = 103,543.71 × 19,109.28
  4. Step 4: Simplify right side
    69,029.04x = 1,978,645,746.63
  5. Step 5: Solve for x
    x = 1,978,645,746.63/69,029.04
  6. Step 6: Final answer
    x = 28,663.96

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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.