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Finding the Fourth Proportional to 84,055.88, 115,996.74 and 45,817.64

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Solution

The fourth proportional to 84,055.88, 115,996.74 and 45,817.64 is: 63,228.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,055.88 : 115,996.74 = 45,817.64 : x
  2. Step 2: Convert to fraction form
    84,055.88/115,996.74 = 45,817.64/x
  3. Step 3: Cross multiply
    84,055.88x = 115,996.74 × 45,817.64
  4. Step 4: Simplify right side
    84,055.88x = 5,314,696,874.49
  5. Step 5: Solve for x
    x = 5,314,696,874.49/84,055.88
  6. Step 6: Final answer
    x = 63,228.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.