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Finding the Fourth Proportional to 77,654.91, 116,482.52 and 21,495.18

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Solution

The fourth proportional to 77,654.91, 116,482.52 and 21,495.18 is: 32,242.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,654.91 : 116,482.52 = 21,495.18 : x
  2. Step 2: Convert to fraction form
    77,654.91/116,482.52 = 21,495.18/x
  3. Step 3: Cross multiply
    77,654.91x = 116,482.52 × 21,495.18
  4. Step 4: Simplify right side
    77,654.91x = 2,503,812,787.99
  5. Step 5: Solve for x
    x = 2,503,812,787.99/77,654.91
  6. Step 6: Final answer
    x = 32,242.81

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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.