Home / 76,388.40-114,555.15-26,455.05

Finding the Fourth Proportional to 76,388.40, 114,555.15 and 26,455.05

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Solution

The fourth proportional to 76,388.40, 114,555.15 and 26,455.05 is: 39,673.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,388.40 : 114,555.15 = 26,455.05 : x
  2. Step 2: Convert to fraction form
    76,388.40/114,555.15 = 26,455.05/x
  3. Step 3: Cross multiply
    76,388.40x = 114,555.15 × 26,455.05
  4. Step 4: Simplify right side
    76,388.40x = 3,030,562,221.01
  5. Step 5: Solve for x
    x = 3,030,562,221.01/76,388.40
  6. Step 6: Final answer
    x = 39,673.07

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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.