Home / 83,541.21-115,261.68-51,242.64

Finding the Fourth Proportional to 83,541.21, 115,261.68 and 51,242.64

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Solution

The fourth proportional to 83,541.21, 115,261.68 and 51,242.64 is: 70,699.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,541.21 : 115,261.68 = 51,242.64 : x
  2. Step 2: Convert to fraction form
    83,541.21/115,261.68 = 51,242.64/x
  3. Step 3: Cross multiply
    83,541.21x = 115,261.68 × 51,242.64
  4. Step 4: Simplify right side
    83,541.21x = 5,906,311,941.51
  5. Step 5: Solve for x
    x = 5,906,311,941.51/83,541.21
  6. Step 6: Final answer
    x = 70,699.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.