Home / 75,427.94-113,142.90-19,268.51

Finding the Fourth Proportional to 75,427.94, 113,142.90 and 19,268.51

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Solution

The fourth proportional to 75,427.94, 113,142.90 and 19,268.51 is: 28,903.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,427.94 : 113,142.90 = 19,268.51 : x
  2. Step 2: Convert to fraction form
    75,427.94/113,142.90 = 19,268.51/x
  3. Step 3: Cross multiply
    75,427.94x = 113,142.90 × 19,268.51
  4. Step 4: Simplify right side
    75,427.94x = 2,180,095,100.08
  5. Step 5: Solve for x
    x = 2,180,095,100.08/75,427.94
  6. Step 6: Final answer
    x = 28,903.02

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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.