Home / 84,288.24-126,432.32-25,122.40

Finding the Fourth Proportional to 84,288.24, 126,432.32 and 25,122.40

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Solution

The fourth proportional to 84,288.24, 126,432.32 and 25,122.40 is: 37,683.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,288.24 : 126,432.32 = 25,122.40 : x
  2. Step 2: Convert to fraction form
    84,288.24/126,432.32 = 25,122.40/x
  3. Step 3: Cross multiply
    84,288.24x = 126,432.32 × 25,122.40
  4. Step 4: Simplify right side
    84,288.24x = 3,176,283,315.97
  5. Step 5: Solve for x
    x = 3,176,283,315.97/84,288.24
  6. Step 6: Final answer
    x = 37,683.59

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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.