Home / 72,247.16-99,698.76-40,415.37

Finding the Fourth Proportional to 72,247.16, 99,698.76 and 40,415.37

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Solution

The fourth proportional to 72,247.16, 99,698.76 and 40,415.37 is: 55,771.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,247.16 : 99,698.76 = 40,415.37 : x
  2. Step 2: Convert to fraction form
    72,247.16/99,698.76 = 40,415.37/x
  3. Step 3: Cross multiply
    72,247.16x = 99,698.76 × 40,415.37
  4. Step 4: Simplify right side
    72,247.16x = 4,029,362,273.94
  5. Step 5: Solve for x
    x = 4,029,362,273.94/72,247.16
  6. Step 6: Final answer
    x = 55,771.92

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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.