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Finding the Fourth Proportional to 84,432.60, 126,632.70 and 25,270.20

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Solution

The fourth proportional to 84,432.60, 126,632.70 and 25,270.20 is: 37,900.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,432.60 : 126,632.70 = 25,270.20 : x
  2. Step 2: Convert to fraction form
    84,432.60/126,632.70 = 25,270.20/x
  3. Step 3: Cross multiply
    84,432.60x = 126,632.70 × 25,270.20
  4. Step 4: Simplify right side
    84,432.60x = 3,200,033,655.54
  5. Step 5: Solve for x
    x = 3,200,033,655.54/84,432.60
  6. Step 6: Final answer
    x = 37,900.45

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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.