Home / 55,393.60-76,442.78-30,243.10

Finding the Fourth Proportional to 55,393.60, 76,442.78 and 30,243.10

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Solution

The fourth proportional to 55,393.60, 76,442.78 and 30,243.10 is: 41,735.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,393.60 : 76,442.78 = 30,243.10 : x
  2. Step 2: Convert to fraction form
    55,393.60/76,442.78 = 30,243.10/x
  3. Step 3: Cross multiply
    55,393.60x = 76,442.78 × 30,243.10
  4. Step 4: Simplify right side
    55,393.60x = 2,311,866,639.82
  5. Step 5: Solve for x
    x = 2,311,866,639.82/55,393.60
  6. Step 6: Final answer
    x = 41,735.27

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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.