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Finding the Fourth Proportional to 77,666.66, 116,500.14 and 21,506.94

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Solution

The fourth proportional to 77,666.66, 116,500.14 and 21,506.94 is: 32,260.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,666.66 : 116,500.14 = 21,506.94 : x
  2. Step 2: Convert to fraction form
    77,666.66/116,500.14 = 21,506.94/x
  3. Step 3: Cross multiply
    77,666.66x = 116,500.14 × 21,506.94
  4. Step 4: Simplify right side
    77,666.66x = 2,505,561,520.97
  5. Step 5: Solve for x
    x = 2,505,561,520.97/77,666.66
  6. Step 6: Final answer
    x = 32,260.45

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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.