Home / 85,625.83-128,451.05-26,466.12

Finding the Fourth Proportional to 85,625.83, 128,451.05 and 26,466.12

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Solution

The fourth proportional to 85,625.83, 128,451.05 and 26,466.12 is: 39,702.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,625.83 : 128,451.05 = 26,466.12 : x
  2. Step 2: Convert to fraction form
    85,625.83/128,451.05 = 26,466.12/x
  3. Step 3: Cross multiply
    85,625.83x = 128,451.05 × 26,466.12
  4. Step 4: Simplify right side
    85,625.83x = 3,399,600,620.73
  5. Step 5: Solve for x
    x = 3,399,600,620.73/85,625.83
  6. Step 6: Final answer
    x = 39,702.98

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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.