Home / 79,954.36-119,909.64-30,030.60

Finding the Fourth Proportional to 79,954.36, 119,909.64 and 30,030.60

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Solution

The fourth proportional to 79,954.36, 119,909.64 and 30,030.60 is: 45,037.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,954.36 : 119,909.64 = 30,030.60 : x
  2. Step 2: Convert to fraction form
    79,954.36/119,909.64 = 30,030.60/x
  3. Step 3: Cross multiply
    79,954.36x = 119,909.64 × 30,030.60
  4. Step 4: Simplify right side
    79,954.36x = 3,600,958,434.98
  5. Step 5: Solve for x
    x = 3,600,958,434.98/79,954.36
  6. Step 6: Final answer
    x = 45,037.67

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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.