Home / 81,744.54-122,550.61-25,555.74

Finding the Fourth Proportional to 81,744.54, 122,550.61 and 25,555.74

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Solution

The fourth proportional to 81,744.54, 122,550.61 and 25,555.74 is: 38,312.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,744.54 : 122,550.61 = 25,555.74 : x
  2. Step 2: Convert to fraction form
    81,744.54/122,550.61 = 25,555.74/x
  3. Step 3: Cross multiply
    81,744.54x = 122,550.61 × 25,555.74
  4. Step 4: Simplify right side
    81,744.54x = 3,131,871,526.00
  5. Step 5: Solve for x
    x = 3,131,871,526.00/81,744.54
  6. Step 6: Final answer
    x = 38,312.91

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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.