Home / 77,109.60-106,429.04-50,205.28

Finding the Fourth Proportional to 77,109.60, 106,429.04 and 50,205.28

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Solution

The fourth proportional to 77,109.60, 106,429.04 and 50,205.28 is: 69,294.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,109.60 : 106,429.04 = 50,205.28 : x
  2. Step 2: Convert to fraction form
    77,109.60/106,429.04 = 50,205.28/x
  3. Step 3: Cross multiply
    77,109.60x = 106,429.04 × 50,205.28
  4. Step 4: Simplify right side
    77,109.60x = 5,343,299,753.33
  5. Step 5: Solve for x
    x = 5,343,299,753.33/77,109.60
  6. Step 6: Final answer
    x = 69,294.87

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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.