Home / 79,977.90-119,954.55-26,670.81

Finding the Fourth Proportional to 79,977.90, 119,954.55 and 26,670.81

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Solution

The fourth proportional to 79,977.90, 119,954.55 and 26,670.81 is: 40,002.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,977.90 : 119,954.55 = 26,670.81 : x
  2. Step 2: Convert to fraction form
    79,977.90/119,954.55 = 26,670.81/x
  3. Step 3: Cross multiply
    79,977.90x = 119,954.55 × 26,670.81
  4. Step 4: Simplify right side
    79,977.90x = 3,199,285,561.53
  5. Step 5: Solve for x
    x = 3,199,285,561.53/79,977.90
  6. Step 6: Final answer
    x = 40,002.12

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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.