Home / 42,903.86-64,358.67-11,739.38

Finding the Fourth Proportional to 42,903.86, 64,358.67 and 11,739.38

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Solution

The fourth proportional to 42,903.86, 64,358.67 and 11,739.38 is: 17,609.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,903.86 : 64,358.67 = 11,739.38 : x
  2. Step 2: Convert to fraction form
    42,903.86/64,358.67 = 11,739.38/x
  3. Step 3: Cross multiply
    42,903.86x = 64,358.67 × 11,739.38
  4. Step 4: Simplify right side
    42,903.86x = 755,530,883.42
  5. Step 5: Solve for x
    x = 755,530,883.42/42,903.86
  6. Step 6: Final answer
    x = 17,609.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.