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Finding the Fourth Proportional to 89,184.80, 133,797.72 and 30,018.89

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Solution

The fourth proportional to 89,184.80, 133,797.72 and 30,018.89 is: 45,035.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,184.80 : 133,797.72 = 30,018.89 : x
  2. Step 2: Convert to fraction form
    89,184.80/133,797.72 = 30,018.89/x
  3. Step 3: Cross multiply
    89,184.80x = 133,797.72 × 30,018.89
  4. Step 4: Simplify right side
    89,184.80x = 4,016,459,038.93
  5. Step 5: Solve for x
    x = 4,016,459,038.93/89,184.80
  6. Step 6: Final answer
    x = 45,035.24

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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.