Home / 90,257.09-124,559.37-49,975.28

Finding the Fourth Proportional to 90,257.09, 124,559.37 and 49,975.28

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Solution

The fourth proportional to 90,257.09, 124,559.37 and 49,975.28 is: 68,968.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,257.09 : 124,559.37 = 49,975.28 : x
  2. Step 2: Convert to fraction form
    90,257.09/124,559.37 = 49,975.28/x
  3. Step 3: Cross multiply
    90,257.09x = 124,559.37 × 49,975.28
  4. Step 4: Simplify right side
    90,257.09x = 6,224,889,703.77
  5. Step 5: Solve for x
    x = 6,224,889,703.77/90,257.09
  6. Step 6: Final answer
    x = 68,968.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.