Home / 78,871.24-118,280.94-26,266.60

Finding the Fourth Proportional to 78,871.24, 118,280.94 and 26,266.60

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Solution

The fourth proportional to 78,871.24, 118,280.94 and 26,266.60 is: 39,391.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,871.24 : 118,280.94 = 26,266.60 : x
  2. Step 2: Convert to fraction form
    78,871.24/118,280.94 = 26,266.60/x
  3. Step 3: Cross multiply
    78,871.24x = 118,280.94 × 26,266.60
  4. Step 4: Simplify right side
    78,871.24x = 3,106,838,138.60
  5. Step 5: Solve for x
    x = 3,106,838,138.60/78,871.24
  6. Step 6: Final answer
    x = 39,391.27

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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.