Home / 72,192.44-99,627.64-40,361.42

Finding the Fourth Proportional to 72,192.44, 99,627.64 and 40,361.42

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Solution

The fourth proportional to 72,192.44, 99,627.64 and 40,361.42 is: 55,699.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,192.44 : 99,627.64 = 40,361.42 : x
  2. Step 2: Convert to fraction form
    72,192.44/99,627.64 = 40,361.42/x
  3. Step 3: Cross multiply
    72,192.44x = 99,627.64 × 40,361.42
  4. Step 4: Simplify right side
    72,192.44x = 4,021,113,021.65
  5. Step 5: Solve for x
    x = 4,021,113,021.65/72,192.44
  6. Step 6: Final answer
    x = 55,699.92

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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.