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Finding the Fourth Proportional to 84,893.49, 127,252.62 and 28,715.13

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Solution

The fourth proportional to 84,893.49, 127,252.62 and 28,715.13 is: 43,043.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,893.49 : 127,252.62 = 28,715.13 : x
  2. Step 2: Convert to fraction form
    84,893.49/127,252.62 = 28,715.13/x
  3. Step 3: Cross multiply
    84,893.49x = 127,252.62 × 28,715.13
  4. Step 4: Simplify right side
    84,893.49x = 3,654,075,526.14
  5. Step 5: Solve for x
    x = 3,654,075,526.14/84,893.49
  6. Step 6: Final answer
    x = 43,043.06

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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.