Home / 55,774.60-76,968.39-30,280.40

Finding the Fourth Proportional to 55,774.60, 76,968.39 and 30,280.40

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Solution

The fourth proportional to 55,774.60, 76,968.39 and 30,280.40 is: 41,786.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,774.60 : 76,968.39 = 30,280.40 : x
  2. Step 2: Convert to fraction form
    55,774.60/76,968.39 = 30,280.40/x
  3. Step 3: Cross multiply
    55,774.60x = 76,968.39 × 30,280.40
  4. Step 4: Simplify right side
    55,774.60x = 2,330,633,828.98
  5. Step 5: Solve for x
    x = 2,330,633,828.98/55,774.60
  6. Step 6: Final answer
    x = 41,786.65

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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.