Home / 89,259.72-123,170.50-51,011.67

Finding the Fourth Proportional to 89,259.72, 123,170.50 and 51,011.67

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Solution

The fourth proportional to 89,259.72, 123,170.50 and 51,011.67 is: 70,391.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,259.72 : 123,170.50 = 51,011.67 : x
  2. Step 2: Convert to fraction form
    89,259.72/123,170.50 = 51,011.67/x
  3. Step 3: Cross multiply
    89,259.72x = 123,170.50 × 51,011.67
  4. Step 4: Simplify right side
    89,259.72x = 6,283,132,772.21
  5. Step 5: Solve for x
    x = 6,283,132,772.21/89,259.72
  6. Step 6: Final answer
    x = 70,391.58

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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.