Home / 91,603.21-137,405.13-32,440.61

Finding the Fourth Proportional to 91,603.21, 137,405.13 and 32,440.61

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Solution

The fourth proportional to 91,603.21, 137,405.13 and 32,440.61 is: 48,661.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,603.21 : 137,405.13 = 32,440.61 : x
  2. Step 2: Convert to fraction form
    91,603.21/137,405.13 = 32,440.61/x
  3. Step 3: Cross multiply
    91,603.21x = 137,405.13 × 32,440.61
  4. Step 4: Simplify right side
    91,603.21x = 4,457,505,385.10
  5. Step 5: Solve for x
    x = 4,457,505,385.10/91,603.21
  6. Step 6: Final answer
    x = 48,661.02

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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.