Home / 72,879.24-100,571.28-41,047.40

Finding the Fourth Proportional to 72,879.24, 100,571.28 and 41,047.40

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Solution

The fourth proportional to 72,879.24, 100,571.28 and 41,047.40 is: 56,644.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,879.24 : 100,571.28 = 41,047.40 : x
  2. Step 2: Convert to fraction form
    72,879.24/100,571.28 = 41,047.40/x
  3. Step 3: Cross multiply
    72,879.24x = 100,571.28 × 41,047.40
  4. Step 4: Simplify right side
    72,879.24x = 4,128,189,558.67
  5. Step 5: Solve for x
    x = 4,128,189,558.67/72,879.24
  6. Step 6: Final answer
    x = 56,644.25

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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.