Home / 89,423.25-123,183.75-76,635.37

Finding the Fourth Proportional to 89,423.25, 123,183.75 and 76,635.37

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Solution

The fourth proportional to 89,423.25, 123,183.75 and 76,635.37 is: 105,567.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,423.25 : 123,183.75 = 76,635.37 : x
  2. Step 2: Convert to fraction form
    89,423.25/123,183.75 = 76,635.37/x
  3. Step 3: Cross multiply
    89,423.25x = 123,183.75 × 76,635.37
  4. Step 4: Simplify right side
    89,423.25x = 9,440,232,259.24
  5. Step 5: Solve for x
    x = 9,440,232,259.24/89,423.25
  6. Step 6: Final answer
    x = 105,567.98

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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.