Home / 100,049.04-150,070.68-47,421.84

Finding the Fourth Proportional to 100,049.04, 150,070.68 and 47,421.84

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Solution

The fourth proportional to 100,049.04, 150,070.68 and 47,421.84 is: 71,131.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,049.04 : 150,070.68 = 47,421.84 : x
  2. Step 2: Convert to fraction form
    100,049.04/150,070.68 = 47,421.84/x
  3. Step 3: Cross multiply
    100,049.04x = 150,070.68 × 47,421.84
  4. Step 4: Simplify right side
    100,049.04x = 7,116,627,775.65
  5. Step 5: Solve for x
    x = 7,116,627,775.65/100,049.04
  6. Step 6: Final answer
    x = 71,131.39

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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.