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Finding the Fourth Proportional to 72,360.84, 108,531.41 and 19,048.35

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Solution

The fourth proportional to 72,360.84, 108,531.41 and 19,048.35 is: 28,569.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,360.84 : 108,531.41 = 19,048.35 : x
  2. Step 2: Convert to fraction form
    72,360.84/108,531.41 = 19,048.35/x
  3. Step 3: Cross multiply
    72,360.84x = 108,531.41 × 19,048.35
  4. Step 4: Simplify right side
    72,360.84x = 2,067,344,188.43
  5. Step 5: Solve for x
    x = 2,067,344,188.43/72,360.84
  6. Step 6: Final answer
    x = 28,569.93

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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.