Home / 89,072.57-122,920.19-48,788.87

Finding the Fourth Proportional to 89,072.57, 122,920.19 and 48,788.87

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Solution

The fourth proportional to 89,072.57, 122,920.19 and 48,788.87 is: 67,328.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,072.57 : 122,920.19 = 48,788.87 : x
  2. Step 2: Convert to fraction form
    89,072.57/122,920.19 = 48,788.87/x
  3. Step 3: Cross multiply
    89,072.57x = 122,920.19 × 48,788.87
  4. Step 4: Simplify right side
    89,072.57x = 5,997,136,311.74
  5. Step 5: Solve for x
    x = 5,997,136,311.74/89,072.57
  6. Step 6: Final answer
    x = 67,328.66

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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.