Home / 90,825.25-136,259.75-28,495.75

Finding the Fourth Proportional to 90,825.25, 136,259.75 and 28,495.75

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Solution

The fourth proportional to 90,825.25, 136,259.75 and 28,495.75 is: 42,750.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,825.25 : 136,259.75 = 28,495.75 : x
  2. Step 2: Convert to fraction form
    90,825.25/136,259.75 = 28,495.75/x
  3. Step 3: Cross multiply
    90,825.25x = 136,259.75 × 28,495.75
  4. Step 4: Simplify right side
    90,825.25x = 3,882,823,771.06
  5. Step 5: Solve for x
    x = 3,882,823,771.06/90,825.25
  6. Step 6: Final answer
    x = 42,750.49

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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.