Home / 85,327.18-127,985.99-26,162.69

Finding the Fourth Proportional to 85,327.18, 127,985.99 and 26,162.69

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Solution

The fourth proportional to 85,327.18, 127,985.99 and 26,162.69 is: 39,242.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,327.18 : 127,985.99 = 26,162.69 : x
  2. Step 2: Convert to fraction form
    85,327.18/127,985.99 = 26,162.69/x
  3. Step 3: Cross multiply
    85,327.18x = 127,985.99 × 26,162.69
  4. Step 4: Simplify right side
    85,327.18x = 3,348,457,649.90
  5. Step 5: Solve for x
    x = 3,348,457,649.90/85,327.18
  6. Step 6: Final answer
    x = 39,242.57

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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.