Home / 89,828.92-123,941.09-65,914.07

Finding the Fourth Proportional to 89,828.92, 123,941.09 and 65,914.07

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Solution

The fourth proportional to 89,828.92, 123,941.09 and 65,914.07 is: 90,944.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,828.92 : 123,941.09 = 65,914.07 : x
  2. Step 2: Convert to fraction form
    89,828.92/123,941.09 = 65,914.07/x
  3. Step 3: Cross multiply
    89,828.92x = 123,941.09 × 65,914.07
  4. Step 4: Simplify right side
    89,828.92x = 8,169,461,352.57
  5. Step 5: Solve for x
    x = 8,169,461,352.57/89,828.92
  6. Step 6: Final answer
    x = 90,944.67

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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.