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Finding the Fourth Proportional to 76,699.40, 115,092.30 and 29,946.20

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Solution

The fourth proportional to 76,699.40, 115,092.30 and 29,946.20 is: 44,936.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,699.40 : 115,092.30 = 29,946.20 : x
  2. Step 2: Convert to fraction form
    76,699.40/115,092.30 = 29,946.20/x
  3. Step 3: Cross multiply
    76,699.40x = 115,092.30 × 29,946.20
  4. Step 4: Simplify right side
    76,699.40x = 3,446,577,034.26
  5. Step 5: Solve for x
    x = 3,446,577,034.26/76,699.40
  6. Step 6: Final answer
    x = 44,936.17

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1.5x scale

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.