Home / 76,833.04-115,145.04-45,257.62

Finding the Fourth Proportional to 76,833.04, 115,145.04 and 45,257.62

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Solution

The fourth proportional to 76,833.04, 115,145.04 and 45,257.62 is: 67,824.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,833.04 : 115,145.04 = 45,257.62 : x
  2. Step 2: Convert to fraction form
    76,833.04/115,145.04 = 45,257.62/x
  3. Step 3: Cross multiply
    76,833.04x = 115,145.04 × 45,257.62
  4. Step 4: Simplify right side
    76,833.04x = 5,211,190,465.20
  5. Step 5: Solve for x
    x = 5,211,190,465.20/76,833.04
  6. Step 6: Final answer
    x = 67,824.86

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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.