Home / 89,385.03-123,370.99-61,828.46

Finding the Fourth Proportional to 89,385.03, 123,370.99 and 61,828.46

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Solution

The fourth proportional to 89,385.03, 123,370.99 and 61,828.46 is: 85,336.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,385.03 : 123,370.99 = 61,828.46 : x
  2. Step 2: Convert to fraction form
    89,385.03/123,370.99 = 61,828.46/x
  3. Step 3: Cross multiply
    89,385.03x = 123,370.99 × 61,828.46
  4. Step 4: Simplify right side
    89,385.03x = 7,627,838,320.38
  5. Step 5: Solve for x
    x = 7,627,838,320.38/89,385.03
  6. Step 6: Final answer
    x = 85,336.87

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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.