Home / 55,515.78-76,612.23-30,365.28

Finding the Fourth Proportional to 55,515.78, 76,612.23 and 30,365.28

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Solution

The fourth proportional to 55,515.78, 76,612.23 and 30,365.28 is: 41,904.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,515.78 : 76,612.23 = 30,365.28 : x
  2. Step 2: Convert to fraction form
    55,515.78/76,612.23 = 30,365.28/x
  3. Step 3: Cross multiply
    55,515.78x = 76,612.23 × 30,365.28
  4. Step 4: Simplify right side
    55,515.78x = 2,326,351,815.37
  5. Step 5: Solve for x
    x = 2,326,351,815.37/55,515.78
  6. Step 6: Final answer
    x = 41,904.33

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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.