Home / 84,958.56-127,265.04-42,812.64

Finding the Fourth Proportional to 84,958.56, 127,265.04 and 42,812.64

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Solution

The fourth proportional to 84,958.56, 127,265.04 and 42,812.64 is: 64,131.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,958.56 : 127,265.04 = 42,812.64 : x
  2. Step 2: Convert to fraction form
    84,958.56/127,265.04 = 42,812.64/x
  3. Step 3: Cross multiply
    84,958.56x = 127,265.04 × 42,812.64
  4. Step 4: Simplify right side
    84,958.56x = 5,448,552,342.11
  5. Step 5: Solve for x
    x = 5,448,552,342.11/84,958.56
  6. Step 6: Final answer
    x = 64,131.88

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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.