Home / 60,284.48-90,431.76-20,825.60

Finding the Fourth Proportional to 60,284.48, 90,431.76 and 20,825.60

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Solution

The fourth proportional to 60,284.48, 90,431.76 and 20,825.60 is: 31,240.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,284.48 : 90,431.76 = 20,825.60 : x
  2. Step 2: Convert to fraction form
    60,284.48/90,431.76 = 20,825.60/x
  3. Step 3: Cross multiply
    60,284.48x = 90,431.76 × 20,825.60
  4. Step 4: Simplify right side
    60,284.48x = 1,883,295,661.06
  5. Step 5: Solve for x
    x = 1,883,295,661.06/60,284.48
  6. Step 6: Final answer
    x = 31,240.14

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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.