Home / 79,733.70-119,599.92-20,564.28

Finding the Fourth Proportional to 79,733.70, 119,599.92 and 20,564.28

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Solution

The fourth proportional to 79,733.70, 119,599.92 and 20,564.28 is: 30,846.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,733.70 : 119,599.92 = 20,564.28 : x
  2. Step 2: Convert to fraction form
    79,733.70/119,599.92 = 20,564.28/x
  3. Step 3: Cross multiply
    79,733.70x = 119,599.92 × 20,564.28
  4. Step 4: Simplify right side
    79,733.70x = 2,459,486,242.86
  5. Step 5: Solve for x
    x = 2,459,486,242.86/79,733.70
  6. Step 6: Final answer
    x = 30,846.26

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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.