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Finding the Fourth Proportional to 89,857.68, 134,741.30 and 55,666.67

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Solution

The fourth proportional to 89,857.68, 134,741.30 and 55,666.67 is: 83,471.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,857.68 : 134,741.30 = 55,666.67 : x
  2. Step 2: Convert to fraction form
    89,857.68/134,741.30 = 55,666.67/x
  3. Step 3: Cross multiply
    89,857.68x = 134,741.30 × 55,666.67
  4. Step 4: Simplify right side
    89,857.68x = 7,500,599,065.95
  5. Step 5: Solve for x
    x = 7,500,599,065.95/89,857.68
  6. Step 6: Final answer
    x = 83,471.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.