Home / 81,701.40-122,555.70-46,162.20

Finding the Fourth Proportional to 81,701.40, 122,555.70 and 46,162.20

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Solution

The fourth proportional to 81,701.40, 122,555.70 and 46,162.20 is: 69,245.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,701.40 : 122,555.70 = 46,162.20 : x
  2. Step 2: Convert to fraction form
    81,701.40/122,555.70 = 46,162.20/x
  3. Step 3: Cross multiply
    81,701.40x = 122,555.70 × 46,162.20
  4. Step 4: Simplify right side
    81,701.40x = 5,657,440,734.54
  5. Step 5: Solve for x
    x = 5,657,440,734.54/81,701.40
  6. Step 6: Final answer
    x = 69,245.33

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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.