Home / 81,590.82-122,392.08-34,158.18

Finding the Fourth Proportional to 81,590.82, 122,392.08 and 34,158.18

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Solution

The fourth proportional to 81,590.82, 122,392.08 and 34,158.18 is: 51,239.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,590.82 : 122,392.08 = 34,158.18 : x
  2. Step 2: Convert to fraction form
    81,590.82/122,392.08 = 34,158.18/x
  3. Step 3: Cross multiply
    81,590.82x = 122,392.08 × 34,158.18
  4. Step 4: Simplify right side
    81,590.82x = 4,180,690,699.21
  5. Step 5: Solve for x
    x = 4,180,690,699.21/81,590.82
  6. Step 6: Final answer
    x = 51,239.72

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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.