Home / 77,789.24-107,346.30-47,563.28

Finding the Fourth Proportional to 77,789.24, 107,346.30 and 47,563.28

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Solution

The fourth proportional to 77,789.24, 107,346.30 and 47,563.28 is: 65,635.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,789.24 : 107,346.30 = 47,563.28 : x
  2. Step 2: Convert to fraction form
    77,789.24/107,346.30 = 47,563.28/x
  3. Step 3: Cross multiply
    77,789.24x = 107,346.30 × 47,563.28
  4. Step 4: Simplify right side
    77,789.24x = 5,105,742,123.86
  5. Step 5: Solve for x
    x = 5,105,742,123.86/77,789.24
  6. Step 6: Final answer
    x = 65,635.58

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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.