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Finding the Fourth Proportional to 65,614.79, 98,274.21 and 30,480.51

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Solution

The fourth proportional to 65,614.79, 98,274.21 and 30,480.51 is: 45,652.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,614.79 : 98,274.21 = 30,480.51 : x
  2. Step 2: Convert to fraction form
    65,614.79/98,274.21 = 30,480.51/x
  3. Step 3: Cross multiply
    65,614.79x = 98,274.21 × 30,480.51
  4. Step 4: Simplify right side
    65,614.79x = 2,995,448,040.65
  5. Step 5: Solve for x
    x = 2,995,448,040.65/65,614.79
  6. Step 6: Final answer
    x = 45,652.03

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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.