Home / 74,622.86-102,986.81-55,727.18

Finding the Fourth Proportional to 74,622.86, 102,986.81 and 55,727.18

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Solution

The fourth proportional to 74,622.86, 102,986.81 and 55,727.18 is: 76,908.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,622.86 : 102,986.81 = 55,727.18 : x
  2. Step 2: Convert to fraction form
    74,622.86/102,986.81 = 55,727.18/x
  3. Step 3: Cross multiply
    74,622.86x = 102,986.81 × 55,727.18
  4. Step 4: Simplify right side
    74,622.86x = 5,739,163,704.93
  5. Step 5: Solve for x
    x = 5,739,163,704.93/74,622.86
  6. Step 6: Final answer
    x = 76,908.93

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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.