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Finding the Fourth Proportional to 84,654.21, 127,000.46 and 42,554.46

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Solution

The fourth proportional to 84,654.21, 127,000.46 and 42,554.46 is: 63,841.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,654.21 : 127,000.46 = 42,554.46 : x
  2. Step 2: Convert to fraction form
    84,654.21/127,000.46 = 42,554.46/x
  3. Step 3: Cross multiply
    84,654.21x = 127,000.46 × 42,554.46
  4. Step 4: Simplify right side
    84,654.21x = 5,404,436,338.32
  5. Step 5: Solve for x
    x = 5,404,436,338.32/84,654.21
  6. Step 6: Final answer
    x = 63,841.32

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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.