Home / 89,427.55-123,407.44-50,661.76

Finding the Fourth Proportional to 89,427.55, 123,407.44 and 50,661.76

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Solution

The fourth proportional to 89,427.55, 123,407.44 and 50,661.76 is: 69,911.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,427.55 : 123,407.44 = 50,661.76 : x
  2. Step 2: Convert to fraction form
    89,427.55/123,407.44 = 50,661.76/x
  3. Step 3: Cross multiply
    89,427.55x = 123,407.44 × 50,661.76
  4. Step 4: Simplify right side
    89,427.55x = 6,252,038,107.49
  5. Step 5: Solve for x
    x = 6,252,038,107.49/89,427.55
  6. Step 6: Final answer
    x = 69,911.77

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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.