Home / 78,941.68-118,410.85-25,633.60

Finding the Fourth Proportional to 78,941.68, 118,410.85 and 25,633.60

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Solution

The fourth proportional to 78,941.68, 118,410.85 and 25,633.60 is: 38,449.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,941.68 : 118,410.85 = 25,633.60 : x
  2. Step 2: Convert to fraction form
    78,941.68/118,410.85 = 25,633.60/x
  3. Step 3: Cross multiply
    78,941.68x = 118,410.85 × 25,633.60
  4. Step 4: Simplify right side
    78,941.68x = 3,035,296,364.56
  5. Step 5: Solve for x
    x = 3,035,296,364.56/78,941.68
  6. Step 6: Final answer
    x = 38,449.86

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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.