Home / 85,253.28-127,716.24-47,699.66

Finding the Fourth Proportional to 85,253.28, 127,716.24 and 47,699.66

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Solution

The fourth proportional to 85,253.28, 127,716.24 and 47,699.66 is: 71,457.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,253.28 : 127,716.24 = 47,699.66 : x
  2. Step 2: Convert to fraction form
    85,253.28/127,716.24 = 47,699.66/x
  3. Step 3: Cross multiply
    85,253.28x = 127,716.24 × 47,699.66
  4. Step 4: Simplify right side
    85,253.28x = 6,092,021,224.48
  5. Step 5: Solve for x
    x = 6,092,021,224.48/85,253.28
  6. Step 6: Final answer
    x = 71,457.91

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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.