Home / 54,272.70-81,409.05-34,638.30

Finding the Fourth Proportional to 54,272.70, 81,409.05 and 34,638.30

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Solution

The fourth proportional to 54,272.70, 81,409.05 and 34,638.30 is: 51,957.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,272.70 : 81,409.05 = 34,638.30 : x
  2. Step 2: Convert to fraction form
    54,272.70/81,409.05 = 34,638.30/x
  3. Step 3: Cross multiply
    54,272.70x = 81,409.05 × 34,638.30
  4. Step 4: Simplify right side
    54,272.70x = 2,819,871,096.62
  5. Step 5: Solve for x
    x = 2,819,871,096.62/54,272.70
  6. Step 6: Final answer
    x = 51,957.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.