Home / 79,089.20-118,595.40-43,991.60

Finding the Fourth Proportional to 79,089.20, 118,595.40 and 43,991.60

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Solution

The fourth proportional to 79,089.20, 118,595.40 and 43,991.60 is: 65,966.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,089.20 : 118,595.40 = 43,991.60 : x
  2. Step 2: Convert to fraction form
    79,089.20/118,595.40 = 43,991.60/x
  3. Step 3: Cross multiply
    79,089.20x = 118,595.40 × 43,991.60
  4. Step 4: Simplify right side
    79,089.20x = 5,217,201,398.64
  5. Step 5: Solve for x
    x = 5,217,201,398.64/79,089.20
  6. Step 6: Final answer
    x = 65,966.04

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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.