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Finding the Fourth Proportional to 72,863.20, 100,554.96 and 44,560

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Solution

The fourth proportional to 72,863.20, 100,554.96 and 44,560 is: 61,495.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,863.20 : 100,554.96 = 44,560 : x
  2. Step 2: Convert to fraction form
    72,863.20/100,554.96 = 44,560/x
  3. Step 3: Cross multiply
    72,863.20x = 100,554.96 × 44,560
  4. Step 4: Simplify right side
    72,863.20x = 4,480,729,017.60
  5. Step 5: Solve for x
    x = 4,480,729,017.60/72,863.20
  6. Step 6: Final answer
    x = 61,495.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.