Home / 89,082.21-122,886.87-55,079.83

Finding the Fourth Proportional to 89,082.21, 122,886.87 and 55,079.83

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Solution

The fourth proportional to 89,082.21, 122,886.87 and 55,079.83 is: 75,981.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,082.21 : 122,886.87 = 55,079.83 : x
  2. Step 2: Convert to fraction form
    89,082.21/122,886.87 = 55,079.83/x
  3. Step 3: Cross multiply
    89,082.21x = 122,886.87 × 55,079.83
  4. Step 4: Simplify right side
    89,082.21x = 6,768,588,165.72
  5. Step 5: Solve for x
    x = 6,768,588,165.72/89,082.21
  6. Step 6: Final answer
    x = 75,981.36

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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.