Home / 75,007.20-112,539.60-73,826.40

Finding the Fourth Proportional to 75,007.20, 112,539.60 and 73,826.40

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Solution

The fourth proportional to 75,007.20, 112,539.60 and 73,826.40 is: 110,767.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,007.20 : 112,539.60 = 73,826.40 : x
  2. Step 2: Convert to fraction form
    75,007.20/112,539.60 = 73,826.40/x
  3. Step 3: Cross multiply
    75,007.20x = 112,539.60 × 73,826.40
  4. Step 4: Simplify right side
    75,007.20x = 8,308,393,525.44
  5. Step 5: Solve for x
    x = 8,308,393,525.44/75,007.20
  6. Step 6: Final answer
    x = 110,767.95

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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.