Home / 76,931.34-115,445.61-30,183.18

Finding the Fourth Proportional to 76,931.34, 115,445.61 and 30,183.18

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Solution

The fourth proportional to 76,931.34, 115,445.61 and 30,183.18 is: 45,293.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,931.34 : 115,445.61 = 30,183.18 : x
  2. Step 2: Convert to fraction form
    76,931.34/115,445.61 = 30,183.18/x
  3. Step 3: Cross multiply
    76,931.34x = 115,445.61 × 30,183.18
  4. Step 4: Simplify right side
    76,931.34x = 3,484,515,626.84
  5. Step 5: Solve for x
    x = 3,484,515,626.84/76,931.34
  6. Step 6: Final answer
    x = 45,293.84

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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.