Home / 79,929.87-119,881.16-26,615.79

Finding the Fourth Proportional to 79,929.87, 119,881.16 and 26,615.79

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Solution

The fourth proportional to 79,929.87, 119,881.16 and 26,615.79 is: 39,919.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,929.87 : 119,881.16 = 26,615.79 : x
  2. Step 2: Convert to fraction form
    79,929.87/119,881.16 = 26,615.79/x
  3. Step 3: Cross multiply
    79,929.87x = 119,881.16 × 26,615.79
  4. Step 4: Simplify right side
    79,929.87x = 3,190,731,646.44
  5. Step 5: Solve for x
    x = 3,190,731,646.44/79,929.87
  6. Step 6: Final answer
    x = 39,919.14

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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.