Home / 79,987.60-119,994.36-33,243.04

Finding the Fourth Proportional to 79,987.60, 119,994.36 and 33,243.04

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Solution

The fourth proportional to 79,987.60, 119,994.36 and 33,243.04 is: 49,869.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,987.60 : 119,994.36 = 33,243.04 : x
  2. Step 2: Convert to fraction form
    79,987.60/119,994.36 = 33,243.04/x
  3. Step 3: Cross multiply
    79,987.60x = 119,994.36 × 33,243.04
  4. Step 4: Simplify right side
    79,987.60x = 3,988,977,309.25
  5. Step 5: Solve for x
    x = 3,988,977,309.25/79,987.60
  6. Step 6: Final answer
    x = 49,869.95

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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.