Home / 77,288.40-106,668.72-48,996.72

Finding the Fourth Proportional to 77,288.40, 106,668.72 and 48,996.72

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Solution

The fourth proportional to 77,288.40, 106,668.72 and 48,996.72 is: 67,622.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,288.40 : 106,668.72 = 48,996.72 : x
  2. Step 2: Convert to fraction form
    77,288.40/106,668.72 = 48,996.72/x
  3. Step 3: Cross multiply
    77,288.40x = 106,668.72 × 48,996.72
  4. Step 4: Simplify right side
    77,288.40x = 5,226,417,406.60
  5. Step 5: Solve for x
    x = 5,226,417,406.60/77,288.40
  6. Step 6: Final answer
    x = 67,622.27

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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.