Home / 76,313.00-105,312.24-42,324.65

Finding the Fourth Proportional to 76,313.00, 105,312.24 and 42,324.65

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Solution

The fourth proportional to 76,313.00, 105,312.24 and 42,324.65 is: 58,408.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,313.00 : 105,312.24 = 42,324.65 : x
  2. Step 2: Convert to fraction form
    76,313.00/105,312.24 = 42,324.65/x
  3. Step 3: Cross multiply
    76,313.00x = 105,312.24 × 42,324.65
  4. Step 4: Simplify right side
    76,313.00x = 4,457,303,172.15
  5. Step 5: Solve for x
    x = 4,457,303,172.15/76,313.00
  6. Step 6: Final answer
    x = 58,408.18

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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.