Home / 85,335.46-117,795.18-64,175.80

Finding the Fourth Proportional to 85,335.46, 117,795.18 and 64,175.80

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Solution

The fourth proportional to 85,335.46, 117,795.18 and 64,175.80 is: 88,586.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,335.46 : 117,795.18 = 64,175.80 : x
  2. Step 2: Convert to fraction form
    85,335.46/117,795.18 = 64,175.80/x
  3. Step 3: Cross multiply
    85,335.46x = 117,795.18 × 64,175.80
  4. Step 4: Simplify right side
    85,335.46x = 7,559,599,912.64
  5. Step 5: Solve for x
    x = 7,559,599,912.64/85,335.46
  6. Step 6: Final answer
    x = 88,586.85

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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.