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Finding the Fourth Proportional to 77,341.70, 115,957.20 and 29,916.20

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Solution

The fourth proportional to 77,341.70, 115,957.20 and 29,916.20 is: 44,852.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,341.70 : 115,957.20 = 29,916.20 : x
  2. Step 2: Convert to fraction form
    77,341.70/115,957.20 = 29,916.20/x
  3. Step 3: Cross multiply
    77,341.70x = 115,957.20 × 29,916.20
  4. Step 4: Simplify right side
    77,341.70x = 3,468,998,786.64
  5. Step 5: Solve for x
    x = 3,468,998,786.64/77,341.70
  6. Step 6: Final answer
    x = 44,852.89

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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.