Home / 65,402.07-98,161.43-30,361.47

Finding the Fourth Proportional to 65,402.07, 98,161.43 and 30,361.47

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Solution

The fourth proportional to 65,402.07, 98,161.43 and 30,361.47 is: 45,569.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,402.07 : 98,161.43 = 30,361.47 : x
  2. Step 2: Convert to fraction form
    65,402.07/98,161.43 = 30,361.47/x
  3. Step 3: Cross multiply
    65,402.07x = 98,161.43 × 30,361.47
  4. Step 4: Simplify right side
    65,402.07x = 2,980,325,312.10
  5. Step 5: Solve for x
    x = 2,980,325,312.10/65,402.07
  6. Step 6: Final answer
    x = 45,569.28

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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.