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Finding the Fourth Proportional to 85,523.82, 127,659.47 and 75,423.77

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Solution

The fourth proportional to 85,523.82, 127,659.47 and 75,423.77 is: 112,583.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,523.82 : 127,659.47 = 75,423.77 : x
  2. Step 2: Convert to fraction form
    85,523.82/127,659.47 = 75,423.77/x
  3. Step 3: Cross multiply
    85,523.82x = 127,659.47 × 75,423.77
  4. Step 4: Simplify right side
    85,523.82x = 9,628,557,488.19
  5. Step 5: Solve for x
    x = 9,628,557,488.19/85,523.82
  6. Step 6: Final answer
    x = 112,583.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.