Home / 76,385.20-114,577.80-49,813.60

Finding the Fourth Proportional to 76,385.20, 114,577.80 and 49,813.60

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Solution

The fourth proportional to 76,385.20, 114,577.80 and 49,813.60 is: 74,720.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,385.20 : 114,577.80 = 49,813.60 : x
  2. Step 2: Convert to fraction form
    76,385.20/114,577.80 = 49,813.60/x
  3. Step 3: Cross multiply
    76,385.20x = 114,577.80 × 49,813.60
  4. Step 4: Simplify right side
    76,385.20x = 5,707,532,698.08
  5. Step 5: Solve for x
    x = 5,707,532,698.08/76,385.20
  6. Step 6: Final answer
    x = 74,720.40

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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.