Home / 51,890.40-77,824.80-14,440.80

Finding the Fourth Proportional to 51,890.40, 77,824.80 and 14,440.80

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Solution

The fourth proportional to 51,890.40, 77,824.80 and 14,440.80 is: 21,658.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,890.40 : 77,824.80 = 14,440.80 : x
  2. Step 2: Convert to fraction form
    51,890.40/77,824.80 = 14,440.80/x
  3. Step 3: Cross multiply
    51,890.40x = 77,824.80 × 14,440.80
  4. Step 4: Simplify right side
    51,890.40x = 1,123,852,371.84
  5. Step 5: Solve for x
    x = 1,123,852,371.84/51,890.40
  6. Step 6: Final answer
    x = 21,658.19

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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.