Home / 89,458.48-123,401.64-55,451.44

Finding the Fourth Proportional to 89,458.48, 123,401.64 and 55,451.44

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Solution

The fourth proportional to 89,458.48, 123,401.64 and 55,451.44 is: 76,491.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,458.48 : 123,401.64 = 55,451.44 : x
  2. Step 2: Convert to fraction form
    89,458.48/123,401.64 = 55,451.44/x
  3. Step 3: Cross multiply
    89,458.48x = 123,401.64 × 55,451.44
  4. Step 4: Simplify right side
    89,458.48x = 6,842,798,636.36
  5. Step 5: Solve for x
    x = 6,842,798,636.36/89,458.48
  6. Step 6: Final answer
    x = 76,491.34

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1.5x scale

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.