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Finding the Fourth Proportional to 77,703.46, 116,542.29 and 21,549.34

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Solution

The fourth proportional to 77,703.46, 116,542.29 and 21,549.34 is: 32,320.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,703.46 : 116,542.29 = 21,549.34 : x
  2. Step 2: Convert to fraction form
    77,703.46/116,542.29 = 21,549.34/x
  3. Step 3: Cross multiply
    77,703.46x = 116,542.29 × 21,549.34
  4. Step 4: Simplify right side
    77,703.46x = 2,511,409,431.59
  5. Step 5: Solve for x
    x = 2,511,409,431.59/77,703.46
  6. Step 6: Final answer
    x = 32,320.43

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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.