Home / 84,749.34-127,117.84-34,815.90

Finding the Fourth Proportional to 84,749.34, 127,117.84 and 34,815.90

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Solution

The fourth proportional to 84,749.34, 127,117.84 and 34,815.90 is: 52,221.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,749.34 : 127,117.84 = 34,815.90 : x
  2. Step 2: Convert to fraction form
    84,749.34/127,117.84 = 34,815.90/x
  3. Step 3: Cross multiply
    84,749.34x = 127,117.84 × 34,815.90
  4. Step 4: Simplify right side
    84,749.34x = 4,425,722,005.66
  5. Step 5: Solve for x
    x = 4,425,722,005.66/84,749.34
  6. Step 6: Final answer
    x = 52,221.32

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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.