Home / 85,950.13-128,951.59-41,028.81

Finding the Fourth Proportional to 85,950.13, 128,951.59 and 41,028.81

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Solution

The fourth proportional to 85,950.13, 128,951.59 and 41,028.81 is: 61,555.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,950.13 : 128,951.59 = 41,028.81 : x
  2. Step 2: Convert to fraction form
    85,950.13/128,951.59 = 41,028.81/x
  3. Step 3: Cross multiply
    85,950.13x = 128,951.59 × 41,028.81
  4. Step 4: Simplify right side
    85,950.13x = 5,290,729,640.55
  5. Step 5: Solve for x
    x = 5,290,729,640.55/85,950.13
  6. Step 6: Final answer
    x = 61,555.81

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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.