Home / 79,980.15-119,929.96-26,653.24

Finding the Fourth Proportional to 79,980.15, 119,929.96 and 26,653.24

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Solution

The fourth proportional to 79,980.15, 119,929.96 and 26,653.24 is: 39,966.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,980.15 : 119,929.96 = 26,653.24 : x
  2. Step 2: Convert to fraction form
    79,980.15/119,929.96 = 26,653.24/x
  3. Step 3: Cross multiply
    79,980.15x = 119,929.96 × 26,653.24
  4. Step 4: Simplify right side
    79,980.15x = 3,196,522,007.07
  5. Step 5: Solve for x
    x = 3,196,522,007.07/79,980.15
  6. Step 6: Final answer
    x = 39,966.44

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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.