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Finding the Fourth Proportional to 80,050, 120,037.28 and 46,779.64

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Solution

The fourth proportional to 80,050, 120,037.28 and 46,779.64 is: 70,147.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,050 : 120,037.28 = 46,779.64 : x
  2. Step 2: Convert to fraction form
    80,050/120,037.28 = 46,779.64/x
  3. Step 3: Cross multiply
    80,050x = 120,037.28 × 46,779.64
  4. Step 4: Simplify right side
    80,050x = 5,615,300,744.98
  5. Step 5: Solve for x
    x = 5,615,300,744.98/80,050
  6. Step 6: Final answer
    x = 70,147.42

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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.