Home / 89,688.25-123,745.16-62,433.80

Finding the Fourth Proportional to 89,688.25, 123,745.16 and 62,433.80

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Solution

The fourth proportional to 89,688.25, 123,745.16 and 62,433.80 is: 86,141.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,688.25 : 123,745.16 = 62,433.80 : x
  2. Step 2: Convert to fraction form
    89,688.25/123,745.16 = 62,433.80/x
  3. Step 3: Cross multiply
    89,688.25x = 123,745.16 × 62,433.80
  4. Step 4: Simplify right side
    89,688.25x = 7,725,879,639.51
  5. Step 5: Solve for x
    x = 7,725,879,639.51/89,688.25
  6. Step 6: Final answer
    x = 86,141.50

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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.