Home / 66,929.04-100,260.72-45,817.20

Finding the Fourth Proportional to 66,929.04, 100,260.72 and 45,817.20

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Solution

The fourth proportional to 66,929.04, 100,260.72 and 45,817.20 is: 68,634.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,929.04 : 100,260.72 = 45,817.20 : x
  2. Step 2: Convert to fraction form
    66,929.04/100,260.72 = 45,817.20/x
  3. Step 3: Cross multiply
    66,929.04x = 100,260.72 × 45,817.20
  4. Step 4: Simplify right side
    66,929.04x = 4,593,665,460.38
  5. Step 5: Solve for x
    x = 4,593,665,460.38/66,929.04
  6. Step 6: Final answer
    x = 68,634.86

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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.