Home / 79,131.51-118,715.04-26,539.65

Finding the Fourth Proportional to 79,131.51, 118,715.04 and 26,539.65

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Solution

The fourth proportional to 79,131.51, 118,715.04 and 26,539.65 is: 39,815.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,131.51 : 118,715.04 = 26,539.65 : x
  2. Step 2: Convert to fraction form
    79,131.51/118,715.04 = 26,539.65/x
  3. Step 3: Cross multiply
    79,131.51x = 118,715.04 × 26,539.65
  4. Step 4: Simplify right side
    79,131.51x = 3,150,655,611.34
  5. Step 5: Solve for x
    x = 3,150,655,611.34/79,131.51
  6. Step 6: Final answer
    x = 39,815.44

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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.