Home / 85,704.10-128,604.76-46,260.34

Finding the Fourth Proportional to 85,704.10, 128,604.76 and 46,260.34

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Solution

The fourth proportional to 85,704.10, 128,604.76 and 46,260.34 is: 69,416.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,704.10 : 128,604.76 = 46,260.34 : x
  2. Step 2: Convert to fraction form
    85,704.10/128,604.76 = 46,260.34/x
  3. Step 3: Cross multiply
    85,704.10x = 128,604.76 × 46,260.34
  4. Step 4: Simplify right side
    85,704.10x = 5,949,299,923.22
  5. Step 5: Solve for x
    x = 5,949,299,923.22/85,704.10
  6. Step 6: Final answer
    x = 69,416.75

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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.