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Finding the Fourth Proportional to 65,334.60, 90,162.30 and 37,040.76

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Solution

The fourth proportional to 65,334.60, 90,162.30 and 37,040.76 is: 51,116.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,334.60 : 90,162.30 = 37,040.76 : x
  2. Step 2: Convert to fraction form
    65,334.60/90,162.30 = 37,040.76/x
  3. Step 3: Cross multiply
    65,334.60x = 90,162.30 × 37,040.76
  4. Step 4: Simplify right side
    65,334.60x = 3,339,680,115.35
  5. Step 5: Solve for x
    x = 3,339,680,115.35/65,334.60
  6. Step 6: Final answer
    x = 51,116.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.