Home / 52,453.70-78,713.36-21,288.95

Finding the Fourth Proportional to 52,453.70, 78,713.36 and 21,288.95

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Solution

The fourth proportional to 52,453.70, 78,713.36 and 21,288.95 is: 31,946.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,453.70 : 78,713.36 = 21,288.95 : x
  2. Step 2: Convert to fraction form
    52,453.70/78,713.36 = 21,288.95/x
  3. Step 3: Cross multiply
    52,453.70x = 78,713.36 × 21,288.95
  4. Step 4: Simplify right side
    52,453.70x = 1,675,724,785.37
  5. Step 5: Solve for x
    x = 1,675,724,785.37/52,453.70
  6. Step 6: Final answer
    x = 31,946.74

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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.