Home / 109,623.60-164,386.80-50,428.80

Finding the Fourth Proportional to 109,623.60, 164,386.80 and 50,428.80

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Solution

The fourth proportional to 109,623.60, 164,386.80 and 50,428.80 is: 75,620.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,623.60 : 164,386.80 = 50,428.80 : x
  2. Step 2: Convert to fraction form
    109,623.60/164,386.80 = 50,428.80/x
  3. Step 3: Cross multiply
    109,623.60x = 164,386.80 × 50,428.80
  4. Step 4: Simplify right side
    109,623.60x = 8,289,829,059.84
  5. Step 5: Solve for x
    x = 8,289,829,059.84/109,623.60
  6. Step 6: Final answer
    x = 75,620.84

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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.