Home / 76,579.83-105,482.20-53,568.95

Finding the Fourth Proportional to 76,579.83, 105,482.20 and 53,568.95

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Solution

The fourth proportional to 76,579.83, 105,482.20 and 53,568.95 is: 73,786.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,579.83 : 105,482.20 = 53,568.95 : x
  2. Step 2: Convert to fraction form
    76,579.83/105,482.20 = 53,568.95/x
  3. Step 3: Cross multiply
    76,579.83x = 105,482.20 × 53,568.95
  4. Step 4: Simplify right side
    76,579.83x = 5,650,570,136.80
  5. Step 5: Solve for x
    x = 5,650,570,136.80/76,579.83
  6. Step 6: Final answer
    x = 73,786.66

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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.