Home / 78,820.20-118,230.30-23,416.20

Finding the Fourth Proportional to 78,820.20, 118,230.30 and 23,416.20

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Solution

The fourth proportional to 78,820.20, 118,230.30 and 23,416.20 is: 35,124.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,820.20 : 118,230.30 = 23,416.20 : x
  2. Step 2: Convert to fraction form
    78,820.20/118,230.30 = 23,416.20/x
  3. Step 3: Cross multiply
    78,820.20x = 118,230.30 × 23,416.20
  4. Step 4: Simplify right side
    78,820.20x = 2,768,504,350.86
  5. Step 5: Solve for x
    x = 2,768,504,350.86/78,820.20
  6. Step 6: Final answer
    x = 35,124.30

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1.5x scale

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.