Home / 85,022.20-127,527.90-28,862.20

Finding the Fourth Proportional to 85,022.20, 127,527.90 and 28,862.20

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Solution

The fourth proportional to 85,022.20, 127,527.90 and 28,862.20 is: 43,291.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,022.20 : 127,527.90 = 28,862.20 : x
  2. Step 2: Convert to fraction form
    85,022.20/127,527.90 = 28,862.20/x
  3. Step 3: Cross multiply
    85,022.20x = 127,527.90 × 28,862.20
  4. Step 4: Simplify right side
    85,022.20x = 3,680,735,755.38
  5. Step 5: Solve for x
    x = 3,680,735,755.38/85,022.20
  6. Step 6: Final answer
    x = 43,291.47

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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.