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Finding the Fourth Proportional to 72,801.10, 100,479.46 and 44,136.39

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Solution

The fourth proportional to 72,801.10, 100,479.46 and 44,136.39 is: 60,916.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,801.10 : 100,479.46 = 44,136.39 : x
  2. Step 2: Convert to fraction form
    72,801.10/100,479.46 = 44,136.39/x
  3. Step 3: Cross multiply
    72,801.10x = 100,479.46 × 44,136.39
  4. Step 4: Simplify right side
    72,801.10x = 4,434,800,317.28
  5. Step 5: Solve for x
    x = 4,434,800,317.28/72,801.10
  6. Step 6: Final answer
    x = 60,916.66

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1.5x scale

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.