Home / 90,825.75-136,260.50-28,496.25

Finding the Fourth Proportional to 90,825.75, 136,260.50 and 28,496.25

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Solution

The fourth proportional to 90,825.75, 136,260.50 and 28,496.25 is: 42,751.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,825.75 : 136,260.50 = 28,496.25 : x
  2. Step 2: Convert to fraction form
    90,825.75/136,260.50 = 28,496.25/x
  3. Step 3: Cross multiply
    90,825.75x = 136,260.50 × 28,496.25
  4. Step 4: Simplify right side
    90,825.75x = 3,882,913,130.64
  5. Step 5: Solve for x
    x = 3,882,913,130.64/90,825.75
  6. Step 6: Final answer
    x = 42,751.24

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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.