Home / 76,849-115,173.04-39,377.32

Finding the Fourth Proportional to 76,849, 115,173.04 and 39,377.32

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Solution

The fourth proportional to 76,849, 115,173.04 and 39,377.32 is: 59,014.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,849 : 115,173.04 = 39,377.32 : x
  2. Step 2: Convert to fraction form
    76,849/115,173.04 = 39,377.32/x
  3. Step 3: Cross multiply
    76,849x = 115,173.04 × 39,377.32
  4. Step 4: Simplify right side
    76,849x = 4,535,205,651.45
  5. Step 5: Solve for x
    x = 4,535,205,651.45/76,849
  6. Step 6: Final answer
    x = 59,014.50

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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.