Home / 74,834.28-103,271.36-55,730.48

Finding the Fourth Proportional to 74,834.28, 103,271.36 and 55,730.48

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Solution

The fourth proportional to 74,834.28, 103,271.36 and 55,730.48 is: 76,908.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,834.28 : 103,271.36 = 55,730.48 : x
  2. Step 2: Convert to fraction form
    74,834.28/103,271.36 = 55,730.48/x
  3. Step 3: Cross multiply
    74,834.28x = 103,271.36 × 55,730.48
  4. Step 4: Simplify right side
    74,834.28x = 5,755,361,668.04
  5. Step 5: Solve for x
    x = 5,755,361,668.04/74,834.28
  6. Step 6: Final answer
    x = 76,908.09

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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.