Home / 84,829.08-127,046.70-81,876.72

Finding the Fourth Proportional to 84,829.08, 127,046.70 and 81,876.72

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Solution

The fourth proportional to 84,829.08, 127,046.70 and 81,876.72 is: 122,625.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,829.08 : 127,046.70 = 81,876.72 : x
  2. Step 2: Convert to fraction form
    84,829.08/127,046.70 = 81,876.72/x
  3. Step 3: Cross multiply
    84,829.08x = 127,046.70 × 81,876.72
  4. Step 4: Simplify right side
    84,829.08x = 10,402,167,082.82
  5. Step 5: Solve for x
    x = 10,402,167,082.82/84,829.08
  6. Step 6: Final answer
    x = 122,625.01

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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.