Home / 72,214.28-99,680.75-49,628.03

Finding the Fourth Proportional to 72,214.28, 99,680.75 and 49,628.03

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Solution

The fourth proportional to 72,214.28, 99,680.75 and 49,628.03 is: 68,503.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,214.28 : 99,680.75 = 49,628.03 : x
  2. Step 2: Convert to fraction form
    72,214.28/99,680.75 = 49,628.03/x
  3. Step 3: Cross multiply
    72,214.28x = 99,680.75 × 49,628.03
  4. Step 4: Simplify right side
    72,214.28x = 4,946,959,624.69
  5. Step 5: Solve for x
    x = 4,946,959,624.69/72,214.28
  6. Step 6: Final answer
    x = 68,503.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.