Home / 55,142.80-76,096.64-29,992.32

Finding the Fourth Proportional to 55,142.80, 76,096.64 and 29,992.32

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Solution

The fourth proportional to 55,142.80, 76,096.64 and 29,992.32 is: 41,389.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,142.80 : 76,096.64 = 29,992.32 : x
  2. Step 2: Convert to fraction form
    55,142.80/76,096.64 = 29,992.32/x
  3. Step 3: Cross multiply
    55,142.80x = 76,096.64 × 29,992.32
  4. Step 4: Simplify right side
    55,142.80x = 2,282,314,777.80
  5. Step 5: Solve for x
    x = 2,282,314,777.80/55,142.80
  6. Step 6: Final answer
    x = 41,389.17

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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.