Home / 85,560.57-118,034.31-55,355.61

Finding the Fourth Proportional to 85,560.57, 118,034.31 and 55,355.61

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Solution

The fourth proportional to 85,560.57, 118,034.31 and 55,355.61 is: 76,365.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,560.57 : 118,034.31 = 55,355.61 : x
  2. Step 2: Convert to fraction form
    85,560.57/118,034.31 = 55,355.61/x
  3. Step 3: Cross multiply
    85,560.57x = 118,034.31 × 55,355.61
  4. Step 4: Simplify right side
    85,560.57x = 6,533,861,230.98
  5. Step 5: Solve for x
    x = 6,533,861,230.98/85,560.57
  6. Step 6: Final answer
    x = 76,365.33

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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.