Home / 85,635.09-118,147.55-49,795.61

Finding the Fourth Proportional to 85,635.09, 118,147.55 and 49,795.61

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Solution

The fourth proportional to 85,635.09, 118,147.55 and 49,795.61 is: 68,701.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,635.09 : 118,147.55 = 49,795.61 : x
  2. Step 2: Convert to fraction form
    85,635.09/118,147.55 = 49,795.61/x
  3. Step 3: Cross multiply
    85,635.09x = 118,147.55 × 49,795.61
  4. Step 4: Simplify right side
    85,635.09x = 5,883,228,482.54
  5. Step 5: Solve for x
    x = 5,883,228,482.54/85,635.09
  6. Step 6: Final answer
    x = 68,701.14

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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.