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Finding the Fourth Proportional to 91,859.89, 137,790.58 and 25,303.69

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Solution

The fourth proportional to 91,859.89, 137,790.58 and 25,303.69 is: 37,955.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,859.89 : 137,790.58 = 25,303.69 : x
  2. Step 2: Convert to fraction form
    91,859.89/137,790.58 = 25,303.69/x
  3. Step 3: Cross multiply
    91,859.89x = 137,790.58 × 25,303.69
  4. Step 4: Simplify right side
    91,859.89x = 3,486,610,121.24
  5. Step 5: Solve for x
    x = 3,486,610,121.24/91,859.89
  6. Step 6: Final answer
    x = 37,955.74

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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.