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Finding the Fourth Proportional to 91,903.20, 137,822.40 and 32,740.80

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Solution

The fourth proportional to 91,903.20, 137,822.40 and 32,740.80 is: 49,099.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,903.20 : 137,822.40 = 32,740.80 : x
  2. Step 2: Convert to fraction form
    91,903.20/137,822.40 = 32,740.80/x
  3. Step 3: Cross multiply
    91,903.20x = 137,822.40 × 32,740.80
  4. Step 4: Simplify right side
    91,903.20x = 4,512,415,633.92
  5. Step 5: Solve for x
    x = 4,512,415,633.92/91,903.20
  6. Step 6: Final answer
    x = 49,099.66

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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.