Home / 59,661.12-89,436.06-20,190.78

Finding the Fourth Proportional to 59,661.12, 89,436.06 and 20,190.78

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Solution

The fourth proportional to 59,661.12, 89,436.06 and 20,190.78 is: 30,267.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,661.12 : 89,436.06 = 20,190.78 : x
  2. Step 2: Convert to fraction form
    59,661.12/89,436.06 = 20,190.78/x
  3. Step 3: Cross multiply
    59,661.12x = 89,436.06 × 20,190.78
  4. Step 4: Simplify right side
    59,661.12x = 1,805,783,811.53
  5. Step 5: Solve for x
    x = 1,805,783,811.53/59,661.12
  6. Step 6: Final answer
    x = 30,267.35

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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.