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Finding the Fourth Proportional to 84,294.36, 126,440.28 and 25,130.28

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Solution

The fourth proportional to 84,294.36, 126,440.28 and 25,130.28 is: 37,695.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,294.36 : 126,440.28 = 25,130.28 : x
  2. Step 2: Convert to fraction form
    84,294.36/126,440.28 = 25,130.28/x
  3. Step 3: Cross multiply
    84,294.36x = 126,440.28 × 25,130.28
  4. Step 4: Simplify right side
    84,294.36x = 3,177,479,639.68
  5. Step 5: Solve for x
    x = 3,177,479,639.68/84,294.36
  6. Step 6: Final answer
    x = 37,695.04

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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.