Home / 81,774.06-122,708.67-34,385.70

Finding the Fourth Proportional to 81,774.06, 122,708.67 and 34,385.70

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Solution

The fourth proportional to 81,774.06, 122,708.67 and 34,385.70 is: 51,598.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,774.06 : 122,708.67 = 34,385.70 : x
  2. Step 2: Convert to fraction form
    81,774.06/122,708.67 = 34,385.70/x
  3. Step 3: Cross multiply
    81,774.06x = 122,708.67 × 34,385.70
  4. Step 4: Simplify right side
    81,774.06x = 4,219,423,514.02
  5. Step 5: Solve for x
    x = 4,219,423,514.02/81,774.06
  6. Step 6: Final answer
    x = 51,598.56

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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.