Home / 60,991.14-91,464.09-20,998.95

Finding the Fourth Proportional to 60,991.14, 91,464.09 and 20,998.95

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Solution

The fourth proportional to 60,991.14, 91,464.09 and 20,998.95 is: 31,490.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,991.14 : 91,464.09 = 20,998.95 : x
  2. Step 2: Convert to fraction form
    60,991.14/91,464.09 = 20,998.95/x
  3. Step 3: Cross multiply
    60,991.14x = 91,464.09 × 20,998.95
  4. Step 4: Simplify right side
    60,991.14x = 1,920,649,852.71
  5. Step 5: Solve for x
    x = 1,920,649,852.71/60,991.14
  6. Step 6: Final answer
    x = 31,490.64

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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.