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Finding the Fourth Proportional to 65,890, 98,823.87 and 18,494.22

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Solution

The fourth proportional to 65,890, 98,823.87 and 18,494.22 is: 27,738.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,890 : 98,823.87 = 18,494.22 : x
  2. Step 2: Convert to fraction form
    65,890/98,823.87 = 18,494.22/x
  3. Step 3: Cross multiply
    65,890x = 98,823.87 × 18,494.22
  4. Step 4: Simplify right side
    65,890x = 1,827,670,393.03
  5. Step 5: Solve for x
    x = 1,827,670,393.03/65,890
  6. Step 6: Final answer
    x = 27,738.21

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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.