Home / 276,619.80-414,929.70-89,631.30

Finding the Fourth Proportional to 276,619.80, 414,929.70 and 89,631.30

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Solution

The fourth proportional to 276,619.80, 414,929.70 and 89,631.30 is: 134,446.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,619.80 : 414,929.70 = 89,631.30 : x
  2. Step 2: Convert to fraction form
    276,619.80/414,929.70 = 89,631.30/x
  3. Step 3: Cross multiply
    276,619.80x = 414,929.70 × 89,631.30
  4. Step 4: Simplify right side
    276,619.80x = 37,190,688,419.61
  5. Step 5: Solve for x
    x = 37,190,688,419.61/276,619.80
  6. Step 6: Final answer
    x = 134,446.95

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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.