Home / 60,512.40-90,776.70-21,081.60

Finding the Fourth Proportional to 60,512.40, 90,776.70 and 21,081.60

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Solution

The fourth proportional to 60,512.40, 90,776.70 and 21,081.60 is: 31,625.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,512.40 : 90,776.70 = 21,081.60 : x
  2. Step 2: Convert to fraction form
    60,512.40/90,776.70 = 21,081.60/x
  3. Step 3: Cross multiply
    60,512.40x = 90,776.70 × 21,081.60
  4. Step 4: Simplify right side
    60,512.40x = 1,913,718,078.72
  5. Step 5: Solve for x
    x = 1,913,718,078.72/60,512.40
  6. Step 6: Final answer
    x = 31,625.22

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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.