Home / 90,627.70-135,941.55-57,166.60

Finding the Fourth Proportional to 90,627.70, 135,941.55 and 57,166.60

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Solution

The fourth proportional to 90,627.70, 135,941.55 and 57,166.60 is: 85,749.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,627.70 : 135,941.55 = 57,166.60 : x
  2. Step 2: Convert to fraction form
    90,627.70/135,941.55 = 57,166.60/x
  3. Step 3: Cross multiply
    90,627.70x = 135,941.55 × 57,166.60
  4. Step 4: Simplify right side
    90,627.70x = 7,771,316,212.23
  5. Step 5: Solve for x
    x = 7,771,316,212.23/90,627.70
  6. Step 6: Final answer
    x = 85,749.90

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Similar ratio
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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.