Home / 84,274.71-126,430.31-25,115.14

Finding the Fourth Proportional to 84,274.71, 126,430.31 and 25,115.14

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Solution

The fourth proportional to 84,274.71, 126,430.31 and 25,115.14 is: 37,678.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,274.71 : 126,430.31 = 25,115.14 : x
  2. Step 2: Convert to fraction form
    84,274.71/126,430.31 = 25,115.14/x
  3. Step 3: Cross multiply
    84,274.71x = 126,430.31 × 25,115.14
  4. Step 4: Simplify right side
    84,274.71x = 3,175,314,935.89
  5. Step 5: Solve for x
    x = 3,175,314,935.89/84,274.71
  6. Step 6: Final answer
    x = 37,678.15

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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.