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Finding the Fourth Proportional to 72,571.72, 100,159.98 and 44,293.84

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Solution

The fourth proportional to 72,571.72, 100,159.98 and 44,293.84 is: 61,132.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,571.72 : 100,159.98 = 44,293.84 : x
  2. Step 2: Convert to fraction form
    72,571.72/100,159.98 = 44,293.84/x
  3. Step 3: Cross multiply
    72,571.72x = 100,159.98 × 44,293.84
  4. Step 4: Simplify right side
    72,571.72x = 4,436,470,128.52
  5. Step 5: Solve for x
    x = 4,436,470,128.52/72,571.72
  6. Step 6: Final answer
    x = 61,132.22

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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.