Home / 89,083.76-122,888.98-55,081.38

Finding the Fourth Proportional to 89,083.76, 122,888.98 and 55,081.38

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Solution

The fourth proportional to 89,083.76, 122,888.98 and 55,081.38 is: 75,983.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,083.76 : 122,888.98 = 55,081.38 : x
  2. Step 2: Convert to fraction form
    89,083.76/122,888.98 = 55,081.38/x
  3. Step 3: Cross multiply
    89,083.76x = 122,888.98 × 55,081.38
  4. Step 4: Simplify right side
    89,083.76x = 6,768,894,467.49
  5. Step 5: Solve for x
    x = 6,768,894,467.49/89,083.76
  6. Step 6: Final answer
    x = 75,983.48

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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.