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Finding the Fourth Proportional to 85,293.20, 127,891.80 and 32,704.40

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Solution

The fourth proportional to 85,293.20, 127,891.80 and 32,704.40 is: 49,038.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,293.20 : 127,891.80 = 32,704.40 : x
  2. Step 2: Convert to fraction form
    85,293.20/127,891.80 = 32,704.40/x
  3. Step 3: Cross multiply
    85,293.20x = 127,891.80 × 32,704.40
  4. Step 4: Simplify right side
    85,293.20x = 4,182,624,583.92
  5. Step 5: Solve for x
    x = 4,182,624,583.92/85,293.20
  6. Step 6: Final answer
    x = 49,038.20

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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.