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Finding the Fourth Proportional to 85,017.72, 127,523.34 and 22,687.68

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Solution

The fourth proportional to 85,017.72, 127,523.34 and 22,687.68 is: 34,030.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,017.72 : 127,523.34 = 22,687.68 : x
  2. Step 2: Convert to fraction form
    85,017.72/127,523.34 = 22,687.68/x
  3. Step 3: Cross multiply
    85,017.72x = 127,523.34 × 22,687.68
  4. Step 4: Simplify right side
    85,017.72x = 2,893,208,730.45
  5. Step 5: Solve for x
    x = 2,893,208,730.45/85,017.72
  6. Step 6: Final answer
    x = 34,030.66

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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.