Home / 76,700.45-105,875.51-44,879.60

Finding the Fourth Proportional to 76,700.45, 105,875.51 and 44,879.60

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Solution

The fourth proportional to 76,700.45, 105,875.51 and 44,879.60 is: 61,950.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,700.45 : 105,875.51 = 44,879.60 : x
  2. Step 2: Convert to fraction form
    76,700.45/105,875.51 = 44,879.60/x
  3. Step 3: Cross multiply
    76,700.45x = 105,875.51 × 44,879.60
  4. Step 4: Simplify right side
    76,700.45x = 4,751,649,784.82
  5. Step 5: Solve for x
    x = 4,751,649,784.82/76,700.45
  6. Step 6: Final answer
    x = 61,950.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.