Home / 76,025.16-114,037.80-20,621.16

Finding the Fourth Proportional to 76,025.16, 114,037.80 and 20,621.16

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Solution

The fourth proportional to 76,025.16, 114,037.80 and 20,621.16 is: 30,931.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,025.16 : 114,037.80 = 20,621.16 : x
  2. Step 2: Convert to fraction form
    76,025.16/114,037.80 = 20,621.16/x
  3. Step 3: Cross multiply
    76,025.16x = 114,037.80 × 20,621.16
  4. Step 4: Simplify right side
    76,025.16x = 2,351,591,719.85
  5. Step 5: Solve for x
    x = 2,351,591,719.85/76,025.16
  6. Step 6: Final answer
    x = 30,931.76

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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.