Home / 79,299.10-118,947-19,327.91

Finding the Fourth Proportional to 79,299.10, 118,947 and 19,327.91

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Solution

The fourth proportional to 79,299.10, 118,947 and 19,327.91 is: 28,991.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,299.10 : 118,947 = 19,327.91 : x
  2. Step 2: Convert to fraction form
    79,299.10/118,947 = 19,327.91/x
  3. Step 3: Cross multiply
    79,299.10x = 118,947 × 19,327.91
  4. Step 4: Simplify right side
    79,299.10x = 2,298,996,910.77
  5. Step 5: Solve for x
    x = 2,298,996,910.77/79,299.10
  6. Step 6: Final answer
    x = 28,991.46

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1.5x scale

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.