Home / 85,331.50-127,999.09-26,165.86

Finding the Fourth Proportional to 85,331.50, 127,999.09 and 26,165.86

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Solution

The fourth proportional to 85,331.50, 127,999.09 and 26,165.86 is: 39,249.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,331.50 : 127,999.09 = 26,165.86 : x
  2. Step 2: Convert to fraction form
    85,331.50/127,999.09 = 26,165.86/x
  3. Step 3: Cross multiply
    85,331.50x = 127,999.09 × 26,165.86
  4. Step 4: Simplify right side
    85,331.50x = 3,349,205,629.07
  5. Step 5: Solve for x
    x = 3,349,205,629.07/85,331.50
  6. Step 6: Final answer
    x = 39,249.35

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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.