Home / 78,830.20-118,245.30-50,836.60

Finding the Fourth Proportional to 78,830.20, 118,245.30 and 50,836.60

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Solution

The fourth proportional to 78,830.20, 118,245.30 and 50,836.60 is: 76,254.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,830.20 : 118,245.30 = 50,836.60 : x
  2. Step 2: Convert to fraction form
    78,830.20/118,245.30 = 50,836.60/x
  3. Step 3: Cross multiply
    78,830.20x = 118,245.30 × 50,836.60
  4. Step 4: Simplify right side
    78,830.20x = 6,011,189,017.98
  5. Step 5: Solve for x
    x = 6,011,189,017.98/78,830.20
  6. Step 6: Final answer
    x = 76,254.90

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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.