Home / 72,779.40-109,136.70-33,348.60

Finding the Fourth Proportional to 72,779.40, 109,136.70 and 33,348.60

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Solution

The fourth proportional to 72,779.40, 109,136.70 and 33,348.60 is: 50,008.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,779.40 : 109,136.70 = 33,348.60 : x
  2. Step 2: Convert to fraction form
    72,779.40/109,136.70 = 33,348.60/x
  3. Step 3: Cross multiply
    72,779.40x = 109,136.70 × 33,348.60
  4. Step 4: Simplify right side
    72,779.40x = 3,639,556,153.62
  5. Step 5: Solve for x
    x = 3,639,556,153.62/72,779.40
  6. Step 6: Final answer
    x = 50,008.05

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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.