Home / 74,172.40-111,225.33-44,200.78

Finding the Fourth Proportional to 74,172.40, 111,225.33 and 44,200.78

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Solution

The fourth proportional to 74,172.40, 111,225.33 and 44,200.78 is: 66,281.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,172.40 : 111,225.33 = 44,200.78 : x
  2. Step 2: Convert to fraction form
    74,172.40/111,225.33 = 44,200.78/x
  3. Step 3: Cross multiply
    74,172.40x = 111,225.33 × 44,200.78
  4. Step 4: Simplify right side
    74,172.40x = 4,916,246,063.69
  5. Step 5: Solve for x
    x = 4,916,246,063.69/74,172.40
  6. Step 6: Final answer
    x = 66,281.34

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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.