Home / 72,647.06-100,256.04-40,816.02

Finding the Fourth Proportional to 72,647.06, 100,256.04 and 40,816.02

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Solution

The fourth proportional to 72,647.06, 100,256.04 and 40,816.02 is: 56,327.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,647.06 : 100,256.04 = 40,816.02 : x
  2. Step 2: Convert to fraction form
    72,647.06/100,256.04 = 40,816.02/x
  3. Step 3: Cross multiply
    72,647.06x = 100,256.04 × 40,816.02
  4. Step 4: Simplify right side
    72,647.06x = 4,092,052,533.76
  5. Step 5: Solve for x
    x = 4,092,052,533.76/72,647.06
  6. Step 6: Final answer
    x = 56,327.85

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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.