Home / 54,428.90-75,120.08-33,220.49

Finding the Fourth Proportional to 54,428.90, 75,120.08 and 33,220.49

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Solution

The fourth proportional to 54,428.90, 75,120.08 and 33,220.49 is: 45,849.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,428.90 : 75,120.08 = 33,220.49 : x
  2. Step 2: Convert to fraction form
    54,428.90/75,120.08 = 33,220.49/x
  3. Step 3: Cross multiply
    54,428.90x = 75,120.08 × 33,220.49
  4. Step 4: Simplify right side
    54,428.90x = 2,495,525,324.74
  5. Step 5: Solve for x
    x = 2,495,525,324.74/54,428.90
  6. Step 6: Final answer
    x = 45,849.27

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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.