Home / 60,685.51-91,028.28-19,135.75

Finding the Fourth Proportional to 60,685.51, 91,028.28 and 19,135.75

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Solution

The fourth proportional to 60,685.51, 91,028.28 and 19,135.75 is: 28,703.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,685.51 : 91,028.28 = 19,135.75 : x
  2. Step 2: Convert to fraction form
    60,685.51/91,028.28 = 19,135.75/x
  3. Step 3: Cross multiply
    60,685.51x = 91,028.28 × 19,135.75
  4. Step 4: Simplify right side
    60,685.51x = 1,741,894,409.01
  5. Step 5: Solve for x
    x = 1,741,894,409.01/60,685.51
  6. Step 6: Final answer
    x = 28,703.63

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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.