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Finding the Fourth Proportional to 84,000.14, 126,000.21 and 24,831.20

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Solution

The fourth proportional to 84,000.14, 126,000.21 and 24,831.20 is: 37,246.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,000.14 : 126,000.21 = 24,831.20 : x
  2. Step 2: Convert to fraction form
    84,000.14/126,000.21 = 24,831.20/x
  3. Step 3: Cross multiply
    84,000.14x = 126,000.21 × 24,831.20
  4. Step 4: Simplify right side
    84,000.14x = 3,128,735,784.55
  5. Step 5: Solve for x
    x = 3,128,735,784.55/84,000.14
  6. Step 6: Final answer
    x = 37,246.79

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Similar ratio
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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.