Home / 76,606.04-105,715.32-43,072.04

Finding the Fourth Proportional to 76,606.04, 105,715.32 and 43,072.04

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Solution

The fourth proportional to 76,606.04, 105,715.32 and 43,072.04 is: 59,438.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,606.04 : 105,715.32 = 43,072.04 : x
  2. Step 2: Convert to fraction form
    76,606.04/105,715.32 = 43,072.04/x
  3. Step 3: Cross multiply
    76,606.04x = 105,715.32 × 43,072.04
  4. Step 4: Simplify right side
    76,606.04x = 4,553,374,491.65
  5. Step 5: Solve for x
    x = 4,553,374,491.65/76,606.04
  6. Step 6: Final answer
    x = 59,438.84

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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.