Home / 89,762.48-123,873.05-49,477.79

Finding the Fourth Proportional to 89,762.48, 123,873.05 and 49,477.79

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Solution

The fourth proportional to 89,762.48, 123,873.05 and 49,477.79 is: 68,279.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,762.48 : 123,873.05 = 49,477.79 : x
  2. Step 2: Convert to fraction form
    89,762.48/123,873.05 = 49,477.79/x
  3. Step 3: Cross multiply
    89,762.48x = 123,873.05 × 49,477.79
  4. Step 4: Simplify right side
    89,762.48x = 6,128,964,212.84
  5. Step 5: Solve for x
    x = 6,128,964,212.84/89,762.48
  6. Step 6: Final answer
    x = 68,279.80

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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.