Home / 85,078.81-127,618.22-22,747.69

Finding the Fourth Proportional to 85,078.81, 127,618.22 and 22,747.69

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Solution

The fourth proportional to 85,078.81, 127,618.22 and 22,747.69 is: 34,121.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,078.81 : 127,618.22 = 22,747.69 : x
  2. Step 2: Convert to fraction form
    85,078.81/127,618.22 = 22,747.69/x
  3. Step 3: Cross multiply
    85,078.81x = 127,618.22 × 22,747.69
  4. Step 4: Simplify right side
    85,078.81x = 2,903,019,274.13
  5. Step 5: Solve for x
    x = 2,903,019,274.13/85,078.81
  6. Step 6: Final answer
    x = 34,121.53

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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.