Home / 74,217.36-102,360.24-65,245.68

Finding the Fourth Proportional to 74,217.36, 102,360.24 and 65,245.68

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Solution

The fourth proportional to 74,217.36, 102,360.24 and 65,245.68 is: 89,986.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,217.36 : 102,360.24 = 65,245.68 : x
  2. Step 2: Convert to fraction form
    74,217.36/102,360.24 = 65,245.68/x
  3. Step 3: Cross multiply
    74,217.36x = 102,360.24 × 65,245.68
  4. Step 4: Simplify right side
    74,217.36x = 6,678,563,463.76
  5. Step 5: Solve for x
    x = 6,678,563,463.76/74,217.36
  6. Step 6: Final answer
    x = 89,986.54

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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.