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Finding the Fourth Proportional to 79,445.80, 119,136.30 and 26,828.20

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Solution

The fourth proportional to 79,445.80, 119,136.30 and 26,828.20 is: 40,231.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,445.80 : 119,136.30 = 26,828.20 : x
  2. Step 2: Convert to fraction form
    79,445.80/119,136.30 = 26,828.20/x
  3. Step 3: Cross multiply
    79,445.80x = 119,136.30 × 26,828.20
  4. Step 4: Simplify right side
    79,445.80x = 3,196,212,483.66
  5. Step 5: Solve for x
    x = 3,196,212,483.66/79,445.80
  6. Step 6: Final answer
    x = 40,231.36

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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.