Home / 90,683.49-125,107.38-52,436.01

Finding the Fourth Proportional to 90,683.49, 125,107.38 and 52,436.01

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Solution

The fourth proportional to 90,683.49, 125,107.38 and 52,436.01 is: 72,340.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,683.49 : 125,107.38 = 52,436.01 : x
  2. Step 2: Convert to fraction form
    90,683.49/125,107.38 = 52,436.01/x
  3. Step 3: Cross multiply
    90,683.49x = 125,107.38 × 52,436.01
  4. Step 4: Simplify right side
    90,683.49x = 6,560,131,828.75
  5. Step 5: Solve for x
    x = 6,560,131,828.75/90,683.49
  6. Step 6: Final answer
    x = 72,340.97

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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.