Home / 75,005.20-112,356.60-46,838.80

Finding the Fourth Proportional to 75,005.20, 112,356.60 and 46,838.80

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Solution

The fourth proportional to 75,005.20, 112,356.60 and 46,838.80 is: 70,163.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,005.20 : 112,356.60 = 46,838.80 : x
  2. Step 2: Convert to fraction form
    75,005.20/112,356.60 = 46,838.80/x
  3. Step 3: Cross multiply
    75,005.20x = 112,356.60 × 46,838.80
  4. Step 4: Simplify right side
    75,005.20x = 5,262,648,316.08
  5. Step 5: Solve for x
    x = 5,262,648,316.08/75,005.20
  6. Step 6: Final answer
    x = 70,163.78

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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.