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Finding the Fourth Proportional to 63,510.12, 87,648 and 36,657.60

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Solution

The fourth proportional to 63,510.12, 87,648 and 36,657.60 is: 50,589.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,510.12 : 87,648 = 36,657.60 : x
  2. Step 2: Convert to fraction form
    63,510.12/87,648 = 36,657.60/x
  3. Step 3: Cross multiply
    63,510.12x = 87,648 × 36,657.60
  4. Step 4: Simplify right side
    63,510.12x = 3,212,965,324.80
  5. Step 5: Solve for x
    x = 3,212,965,324.80/63,510.12
  6. Step 6: Final answer
    x = 50,589.82

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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.