Home / 79,620.02-119,458.74-40,147.40

Finding the Fourth Proportional to 79,620.02, 119,458.74 and 40,147.40

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Solution

The fourth proportional to 79,620.02, 119,458.74 and 40,147.40 is: 60,235.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,620.02 : 119,458.74 = 40,147.40 : x
  2. Step 2: Convert to fraction form
    79,620.02/119,458.74 = 40,147.40/x
  3. Step 3: Cross multiply
    79,620.02x = 119,458.74 × 40,147.40
  4. Step 4: Simplify right side
    79,620.02x = 4,795,957,818.28
  5. Step 5: Solve for x
    x = 4,795,957,818.28/79,620.02
  6. Step 6: Final answer
    x = 60,235.58

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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.