Home / 89,115.67-122,979.90-48,829.51

Finding the Fourth Proportional to 89,115.67, 122,979.90 and 48,829.51

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Solution

The fourth proportional to 89,115.67, 122,979.90 and 48,829.51 is: 67,384.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,115.67 : 122,979.90 = 48,829.51 : x
  2. Step 2: Convert to fraction form
    89,115.67/122,979.90 = 48,829.51/x
  3. Step 3: Cross multiply
    89,115.67x = 122,979.90 × 48,829.51
  4. Step 4: Simplify right side
    89,115.67x = 6,005,048,256.85
  5. Step 5: Solve for x
    x = 6,005,048,256.85/89,115.67
  6. Step 6: Final answer
    x = 67,384.87

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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.