Home / 91,474.80-137,222.28-29,130.96

Finding the Fourth Proportional to 91,474.80, 137,222.28 and 29,130.96

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Solution

The fourth proportional to 91,474.80, 137,222.28 and 29,130.96 is: 43,699.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,474.80 : 137,222.28 = 29,130.96 : x
  2. Step 2: Convert to fraction form
    91,474.80/137,222.28 = 29,130.96/x
  3. Step 3: Cross multiply
    91,474.80x = 137,222.28 × 29,130.96
  4. Step 4: Simplify right side
    91,474.80x = 3,997,416,749.79
  5. Step 5: Solve for x
    x = 3,997,416,749.79/91,474.80
  6. Step 6: Final answer
    x = 43,699.65

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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.