Home / 89,865.10-124,012.66-49,580.56

Finding the Fourth Proportional to 89,865.10, 124,012.66 and 49,580.56

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Solution

The fourth proportional to 89,865.10, 124,012.66 and 49,580.56 is: 68,420.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,865.10 : 124,012.66 = 49,580.56 : x
  2. Step 2: Convert to fraction form
    89,865.10/124,012.66 = 49,580.56/x
  3. Step 3: Cross multiply
    89,865.10x = 124,012.66 × 49,580.56
  4. Step 4: Simplify right side
    89,865.10x = 6,148,617,129.89
  5. Step 5: Solve for x
    x = 6,148,617,129.89/89,865.10
  6. Step 6: Final answer
    x = 68,420.52

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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.