Home / 55,774.43-76,968.81-30,280.80

Finding the Fourth Proportional to 55,774.43, 76,968.81 and 30,280.80

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Solution

The fourth proportional to 55,774.43, 76,968.81 and 30,280.80 is: 41,787.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,774.43 : 76,968.81 = 30,280.80 : x
  2. Step 2: Convert to fraction form
    55,774.43/76,968.81 = 30,280.80/x
  3. Step 3: Cross multiply
    55,774.43x = 76,968.81 × 30,280.80
  4. Step 4: Simplify right side
    55,774.43x = 2,330,677,141.85
  5. Step 5: Solve for x
    x = 2,330,677,141.85/55,774.43
  6. Step 6: Final answer
    x = 41,787.56

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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.