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Finding the Fourth Proportional to 89,370.59, 134,051.63 and 30,208.59

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Solution

The fourth proportional to 89,370.59, 134,051.63 and 30,208.59 is: 45,311.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,370.59 : 134,051.63 = 30,208.59 : x
  2. Step 2: Convert to fraction form
    89,370.59/134,051.63 = 30,208.59/x
  3. Step 3: Cross multiply
    89,370.59x = 134,051.63 × 30,208.59
  4. Step 4: Simplify right side
    89,370.59x = 4,049,510,578.46
  5. Step 5: Solve for x
    x = 4,049,510,578.46/89,370.59
  6. Step 6: Final answer
    x = 45,311.45

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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.