Home / 55,784.05-76,982.54-30,290.65

Finding the Fourth Proportional to 55,784.05, 76,982.54 and 30,290.65

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Solution

The fourth proportional to 55,784.05, 76,982.54 and 30,290.65 is: 41,801.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,784.05 : 76,982.54 = 30,290.65 : x
  2. Step 2: Convert to fraction form
    55,784.05/76,982.54 = 30,290.65/x
  3. Step 3: Cross multiply
    55,784.05x = 76,982.54 × 30,290.65
  4. Step 4: Simplify right side
    55,784.05x = 2,331,850,831.34
  5. Step 5: Solve for x
    x = 2,331,850,831.34/55,784.05
  6. Step 6: Final answer
    x = 41,801.39

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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.