Home / 54,647.78-75,417.79-30,450.34

Finding the Fourth Proportional to 54,647.78, 75,417.79 and 30,450.34

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Solution

The fourth proportional to 54,647.78, 75,417.79 and 30,450.34 is: 42,023.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,647.78 : 75,417.79 = 30,450.34 : x
  2. Step 2: Convert to fraction form
    54,647.78/75,417.79 = 30,450.34/x
  3. Step 3: Cross multiply
    54,647.78x = 75,417.79 × 30,450.34
  4. Step 4: Simplify right side
    54,647.78x = 2,296,497,347.55
  5. Step 5: Solve for x
    x = 2,296,497,347.55/54,647.78
  6. Step 6: Final answer
    x = 42,023.62

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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.