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Finding the Fourth Proportional to 84,841.83, 127,262.79 and 21,666.69

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Solution

The fourth proportional to 84,841.83, 127,262.79 and 21,666.69 is: 32,500.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,841.83 : 127,262.79 = 21,666.69 : x
  2. Step 2: Convert to fraction form
    84,841.83/127,262.79 = 21,666.69/x
  3. Step 3: Cross multiply
    84,841.83x = 127,262.79 × 21,666.69
  4. Step 4: Simplify right side
    84,841.83x = 2,757,363,419.47
  5. Step 5: Solve for x
    x = 2,757,363,419.47/84,841.83
  6. Step 6: Final answer
    x = 32,500.05

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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.