Home / 91,040.88-136,561.32-28,716.24

Finding the Fourth Proportional to 91,040.88, 136,561.32 and 28,716.24

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Solution

The fourth proportional to 91,040.88, 136,561.32 and 28,716.24 is: 43,074.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,040.88 : 136,561.32 = 28,716.24 : x
  2. Step 2: Convert to fraction form
    91,040.88/136,561.32 = 28,716.24/x
  3. Step 3: Cross multiply
    91,040.88x = 136,561.32 × 28,716.24
  4. Step 4: Simplify right side
    91,040.88x = 3,921,527,639.84
  5. Step 5: Solve for x
    x = 3,921,527,639.84/91,040.88
  6. Step 6: Final answer
    x = 43,074.36

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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.