Home / 79,140.57-109,224.41-45,141.27

Finding the Fourth Proportional to 79,140.57, 109,224.41 and 45,141.27

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Solution

The fourth proportional to 79,140.57, 109,224.41 and 45,141.27 is: 62,300.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,140.57 : 109,224.41 = 45,141.27 : x
  2. Step 2: Convert to fraction form
    79,140.57/109,224.41 = 45,141.27/x
  3. Step 3: Cross multiply
    79,140.57x = 109,224.41 × 45,141.27
  4. Step 4: Simplify right side
    79,140.57x = 4,930,528,582.40
  5. Step 5: Solve for x
    x = 4,930,528,582.40/79,140.57
  6. Step 6: Final answer
    x = 62,300.90

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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.