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Finding the Fourth Proportional to 85,675.29, 128,509.73 and 22,494.84

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Solution

The fourth proportional to 85,675.29, 128,509.73 and 22,494.84 is: 33,741.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,675.29 : 128,509.73 = 22,494.84 : x
  2. Step 2: Convert to fraction form
    85,675.29/128,509.73 = 22,494.84/x
  3. Step 3: Cross multiply
    85,675.29x = 128,509.73 × 22,494.84
  4. Step 4: Simplify right side
    85,675.29x = 2,890,805,814.79
  5. Step 5: Solve for x
    x = 2,890,805,814.79/85,675.29
  6. Step 6: Final answer
    x = 33,741.42

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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.