Home / 72,154.44-99,571.26-40,323.60

Finding the Fourth Proportional to 72,154.44, 99,571.26 and 40,323.60

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Solution

The fourth proportional to 72,154.44, 99,571.26 and 40,323.60 is: 55,645.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,154.44 : 99,571.26 = 40,323.60 : x
  2. Step 2: Convert to fraction form
    72,154.44/99,571.26 = 40,323.60/x
  3. Step 3: Cross multiply
    72,154.44x = 99,571.26 × 40,323.60
  4. Step 4: Simplify right side
    72,154.44x = 4,015,071,659.74
  5. Step 5: Solve for x
    x = 4,015,071,659.74/72,154.44
  6. Step 6: Final answer
    x = 55,645.52

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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.