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Finding the Fourth Proportional to 59,956.20, 90,007.20 and 30,358.80

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Solution

The fourth proportional to 59,956.20, 90,007.20 and 30,358.80 is: 45,575.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,956.20 : 90,007.20 = 30,358.80 : x
  2. Step 2: Convert to fraction form
    59,956.20/90,007.20 = 30,358.80/x
  3. Step 3: Cross multiply
    59,956.20x = 90,007.20 × 30,358.80
  4. Step 4: Simplify right side
    59,956.20x = 2,732,510,583.36
  5. Step 5: Solve for x
    x = 2,732,510,583.36/59,956.20
  6. Step 6: Final answer
    x = 45,575.11

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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.