Home / 66,415.20-99,334.80-59,445.60

Finding the Fourth Proportional to 66,415.20, 99,334.80 and 59,445.60

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Solution

The fourth proportional to 66,415.20, 99,334.80 and 59,445.60 is: 88,910.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,415.20 : 99,334.80 = 59,445.60 : x
  2. Step 2: Convert to fraction form
    66,415.20/99,334.80 = 59,445.60/x
  3. Step 3: Cross multiply
    66,415.20x = 99,334.80 × 59,445.60
  4. Step 4: Simplify right side
    66,415.20x = 5,905,016,786.88
  5. Step 5: Solve for x
    x = 5,905,016,786.88/66,415.20
  6. Step 6: Final answer
    x = 88,910.62

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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.