Home / 66,915.20-100,341.02-38,843.86

Finding the Fourth Proportional to 66,915.20, 100,341.02 and 38,843.86

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Solution

The fourth proportional to 66,915.20, 100,341.02 and 38,843.86 is: 58,247.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,915.20 : 100,341.02 = 38,843.86 : x
  2. Step 2: Convert to fraction form
    66,915.20/100,341.02 = 38,843.86/x
  3. Step 3: Cross multiply
    66,915.20x = 100,341.02 × 38,843.86
  4. Step 4: Simplify right side
    66,915.20x = 3,897,632,533.14
  5. Step 5: Solve for x
    x = 3,897,632,533.14/66,915.20
  6. Step 6: Final answer
    x = 58,247.34

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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.