Home / 72,299.55-99,777.11-40,034.01

Finding the Fourth Proportional to 72,299.55, 99,777.11 and 40,034.01

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Solution

The fourth proportional to 72,299.55, 99,777.11 and 40,034.01 is: 55,249.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,299.55 : 99,777.11 = 40,034.01 : x
  2. Step 2: Convert to fraction form
    72,299.55/99,777.11 = 40,034.01/x
  3. Step 3: Cross multiply
    72,299.55x = 99,777.11 × 40,034.01
  4. Step 4: Simplify right side
    72,299.55x = 3,994,477,619.34
  5. Step 5: Solve for x
    x = 3,994,477,619.34/72,299.55
  6. Step 6: Final answer
    x = 55,249.00

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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.