Home / 91,241.64-125,844.08-78,516.26

Finding the Fourth Proportional to 91,241.64, 125,844.08 and 78,516.26

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Solution

The fourth proportional to 91,241.64, 125,844.08 and 78,516.26 is: 108,292.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,241.64 : 125,844.08 = 78,516.26 : x
  2. Step 2: Convert to fraction form
    91,241.64/125,844.08 = 78,516.26/x
  3. Step 3: Cross multiply
    91,241.64x = 125,844.08 × 78,516.26
  4. Step 4: Simplify right side
    91,241.64x = 9,880,806,750.44
  5. Step 5: Solve for x
    x = 9,880,806,750.44/91,241.64
  6. Step 6: Final answer
    x = 108,292.74

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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.