Home / 89,889.48-124,046.64-49,603.60

Finding the Fourth Proportional to 89,889.48, 124,046.64 and 49,603.60

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Solution

The fourth proportional to 89,889.48, 124,046.64 and 49,603.60 is: 68,452.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,889.48 : 124,046.64 = 49,603.60 : x
  2. Step 2: Convert to fraction form
    89,889.48/124,046.64 = 49,603.60/x
  3. Step 3: Cross multiply
    89,889.48x = 124,046.64 × 49,603.60
  4. Step 4: Simplify right side
    89,889.48x = 6,153,159,911.90
  5. Step 5: Solve for x
    x = 6,153,159,911.90/89,889.48
  6. Step 6: Final answer
    x = 68,452.50

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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.