Home / 76,609.20-114,931.08-31,629.36

Finding the Fourth Proportional to 76,609.20, 114,931.08 and 31,629.36

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Solution

The fourth proportional to 76,609.20, 114,931.08 and 31,629.36 is: 47,451.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,609.20 : 114,931.08 = 31,629.36 : x
  2. Step 2: Convert to fraction form
    76,609.20/114,931.08 = 31,629.36/x
  3. Step 3: Cross multiply
    76,609.20x = 114,931.08 × 31,629.36
  4. Step 4: Simplify right side
    76,609.20x = 3,635,196,504.51
  5. Step 5: Solve for x
    x = 3,635,196,504.51/76,609.20
  6. Step 6: Final answer
    x = 47,451.17

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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.