Home / 85,208.72-117,588.26-51,236.66

Finding the Fourth Proportional to 85,208.72, 117,588.26 and 51,236.66

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Solution

The fourth proportional to 85,208.72, 117,588.26 and 51,236.66 is: 70,706.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,208.72 : 117,588.26 = 51,236.66 : x
  2. Step 2: Convert to fraction form
    85,208.72/117,588.26 = 51,236.66/x
  3. Step 3: Cross multiply
    85,208.72x = 117,588.26 × 51,236.66
  4. Step 4: Simplify right side
    85,208.72x = 6,024,828,853.49
  5. Step 5: Solve for x
    x = 6,024,828,853.49/85,208.72
  6. Step 6: Final answer
    x = 70,706.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.