Home / 66,099.03-91,182.85-42,200.58

Finding the Fourth Proportional to 66,099.03, 91,182.85 and 42,200.58

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Solution

The fourth proportional to 66,099.03, 91,182.85 and 42,200.58 is: 58,215.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,099.03 : 91,182.85 = 42,200.58 : x
  2. Step 2: Convert to fraction form
    66,099.03/91,182.85 = 42,200.58/x
  3. Step 3: Cross multiply
    66,099.03x = 91,182.85 × 42,200.58
  4. Step 4: Simplify right side
    66,099.03x = 3,847,969,156.05
  5. Step 5: Solve for x
    x = 3,847,969,156.05/66,099.03
  6. Step 6: Final answer
    x = 58,215.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.