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Finding the Fourth Proportional to 85,288.80, 127,846.80 and 50,210.40

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Solution

The fourth proportional to 85,288.80, 127,846.80 and 50,210.40 is: 75,264.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,288.80 : 127,846.80 = 50,210.40 : x
  2. Step 2: Convert to fraction form
    85,288.80/127,846.80 = 50,210.40/x
  3. Step 3: Cross multiply
    85,288.80x = 127,846.80 × 50,210.40
  4. Step 4: Simplify right side
    85,288.80x = 6,419,238,966.72
  5. Step 5: Solve for x
    x = 6,419,238,966.72/85,288.80
  6. Step 6: Final answer
    x = 75,264.74

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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.