Home / 65,815.58-98,723.37-30,779.84

Finding the Fourth Proportional to 65,815.58, 98,723.37 and 30,779.84

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Solution

The fourth proportional to 65,815.58, 98,723.37 and 30,779.84 is: 46,169.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,815.58 : 98,723.37 = 30,779.84 : x
  2. Step 2: Convert to fraction form
    65,815.58/98,723.37 = 30,779.84/x
  3. Step 3: Cross multiply
    65,815.58x = 98,723.37 × 30,779.84
  4. Step 4: Simplify right side
    65,815.58x = 3,038,689,532.86
  5. Step 5: Solve for x
    x = 3,038,689,532.86/65,815.58
  6. Step 6: Final answer
    x = 46,169.76

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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.