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Finding the Fourth Proportional to 65,389.64, 98,016.42 and 30,300.44

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Solution

The fourth proportional to 65,389.64, 98,016.42 and 30,300.44 is: 45,419.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,389.64 : 98,016.42 = 30,300.44 : x
  2. Step 2: Convert to fraction form
    65,389.64/98,016.42 = 30,300.44/x
  3. Step 3: Cross multiply
    65,389.64x = 98,016.42 × 30,300.44
  4. Step 4: Simplify right side
    65,389.64x = 2,969,940,653.22
  5. Step 5: Solve for x
    x = 2,969,940,653.22/65,389.64
  6. Step 6: Final answer
    x = 45,419.13

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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.