Home / 79,973.18-119,960.11-20,804.58

Finding the Fourth Proportional to 79,973.18, 119,960.11 and 20,804.58

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Solution

The fourth proportional to 79,973.18, 119,960.11 and 20,804.58 is: 31,206.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,973.18 : 119,960.11 = 20,804.58 : x
  2. Step 2: Convert to fraction form
    79,973.18/119,960.11 = 20,804.58/x
  3. Step 3: Cross multiply
    79,973.18x = 119,960.11 × 20,804.58
  4. Step 4: Simplify right side
    79,973.18x = 2,495,719,353.39
  5. Step 5: Solve for x
    x = 2,495,719,353.39/79,973.18
  6. Step 6: Final answer
    x = 31,206.95

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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.