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Finding the Fourth Proportional to 91,146.83, 136,751.70 and 37,867.43

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Solution

The fourth proportional to 91,146.83, 136,751.70 and 37,867.43 is: 56,814.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,146.83 : 136,751.70 = 37,867.43 : x
  2. Step 2: Convert to fraction form
    91,146.83/136,751.70 = 37,867.43/x
  3. Step 3: Cross multiply
    91,146.83x = 136,751.70 × 37,867.43
  4. Step 4: Simplify right side
    91,146.83x = 5,178,435,427.13
  5. Step 5: Solve for x
    x = 5,178,435,427.13/91,146.83
  6. Step 6: Final answer
    x = 56,814.21

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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.