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Finding the Fourth Proportional to 77,404.80, 116,038.08 and 30,625.68

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Solution

The fourth proportional to 77,404.80, 116,038.08 and 30,625.68 is: 45,911.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,404.80 : 116,038.08 = 30,625.68 : x
  2. Step 2: Convert to fraction form
    77,404.80/116,038.08 = 30,625.68/x
  3. Step 3: Cross multiply
    77,404.80x = 116,038.08 × 30,625.68
  4. Step 4: Simplify right side
    77,404.80x = 3,553,745,105.89
  5. Step 5: Solve for x
    x = 3,553,745,105.89/77,404.80
  6. Step 6: Final answer
    x = 45,911.17

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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.