Home / 51,207.20-76,810.80-50,879.60

Finding the Fourth Proportional to 51,207.20, 76,810.80 and 50,879.60

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Solution

The fourth proportional to 51,207.20, 76,810.80 and 50,879.60 is: 76,319.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,207.20 : 76,810.80 = 50,879.60 : x
  2. Step 2: Convert to fraction form
    51,207.20/76,810.80 = 50,879.60/x
  3. Step 3: Cross multiply
    51,207.20x = 76,810.80 × 50,879.60
  4. Step 4: Simplify right side
    51,207.20x = 3,908,102,779.68
  5. Step 5: Solve for x
    x = 3,908,102,779.68/51,207.20
  6. Step 6: Final answer
    x = 76,319.40

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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.