Home / 68,756.32-103,140.96-21,998.08

Finding the Fourth Proportional to 68,756.32, 103,140.96 and 21,998.08

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Solution

The fourth proportional to 68,756.32, 103,140.96 and 21,998.08 is: 32,999.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,756.32 : 103,140.96 = 21,998.08 : x
  2. Step 2: Convert to fraction form
    68,756.32/103,140.96 = 21,998.08/x
  3. Step 3: Cross multiply
    68,756.32x = 103,140.96 × 21,998.08
  4. Step 4: Simplify right side
    68,756.32x = 2,268,903,089.36
  5. Step 5: Solve for x
    x = 2,268,903,089.36/68,756.32
  6. Step 6: Final answer
    x = 32,999.19

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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.