Home / 54,258.89-81,018.99-47,880.54

Finding the Fourth Proportional to 54,258.89, 81,018.99 and 47,880.54

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Solution

The fourth proportional to 54,258.89, 81,018.99 and 47,880.54 is: 71,494.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,258.89 : 81,018.99 = 47,880.54 : x
  2. Step 2: Convert to fraction form
    54,258.89/81,018.99 = 47,880.54/x
  3. Step 3: Cross multiply
    54,258.89x = 81,018.99 × 47,880.54
  4. Step 4: Simplify right side
    54,258.89x = 3,879,232,991.45
  5. Step 5: Solve for x
    x = 3,879,232,991.45/54,258.89
  6. Step 6: Final answer
    x = 71,494.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.