Home / 89,719.18-123,803.19-55,258.42

Finding the Fourth Proportional to 89,719.18, 123,803.19 and 55,258.42

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Solution

The fourth proportional to 89,719.18, 123,803.19 and 55,258.42 is: 76,250.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,719.18 : 123,803.19 = 55,258.42 : x
  2. Step 2: Convert to fraction form
    89,719.18/123,803.19 = 55,258.42/x
  3. Step 3: Cross multiply
    89,719.18x = 123,803.19 × 55,258.42
  4. Step 4: Simplify right side
    89,719.18x = 6,841,168,670.36
  5. Step 5: Solve for x
    x = 6,841,168,670.36/89,719.18
  6. Step 6: Final answer
    x = 76,250.90

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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.