Home / 79,977.51-119,977.18-35,603.28

Finding the Fourth Proportional to 79,977.51, 119,977.18 and 35,603.28

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Solution

The fourth proportional to 79,977.51, 119,977.18 and 35,603.28 is: 53,409.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,977.51 : 119,977.18 = 35,603.28 : x
  2. Step 2: Convert to fraction form
    79,977.51/119,977.18 = 35,603.28/x
  3. Step 3: Cross multiply
    79,977.51x = 119,977.18 × 35,603.28
  4. Step 4: Simplify right side
    79,977.51x = 4,271,581,044.14
  5. Step 5: Solve for x
    x = 4,271,581,044.14/79,977.51
  6. Step 6: Final answer
    x = 53,409.78

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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.