Home / 85,662.18-128,508.93-26,493.84

Finding the Fourth Proportional to 85,662.18, 128,508.93 and 26,493.84

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Solution

The fourth proportional to 85,662.18, 128,508.93 and 26,493.84 is: 39,745.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,662.18 : 128,508.93 = 26,493.84 : x
  2. Step 2: Convert to fraction form
    85,662.18/128,508.93 = 26,493.84/x
  3. Step 3: Cross multiply
    85,662.18x = 128,508.93 × 26,493.84
  4. Step 4: Simplify right side
    85,662.18x = 3,404,695,029.99
  5. Step 5: Solve for x
    x = 3,404,695,029.99/85,662.18
  6. Step 6: Final answer
    x = 39,745.60

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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.