Home / 76,638.36-105,700.89-52,453.65

Finding the Fourth Proportional to 76,638.36, 105,700.89 and 52,453.65

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Solution

The fourth proportional to 76,638.36, 105,700.89 and 52,453.65 is: 72,344.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,638.36 : 105,700.89 = 52,453.65 : x
  2. Step 2: Convert to fraction form
    76,638.36/105,700.89 = 52,453.65/x
  3. Step 3: Cross multiply
    76,638.36x = 105,700.89 × 52,453.65
  4. Step 4: Simplify right side
    76,638.36x = 5,544,397,488.75
  5. Step 5: Solve for x
    x = 5,544,397,488.75/76,638.36
  6. Step 6: Final answer
    x = 72,344.94

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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.