Home / 91,022.99-136,530.23-31,871.93

Finding the Fourth Proportional to 91,022.99, 136,530.23 and 31,871.93

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Solution

The fourth proportional to 91,022.99, 136,530.23 and 31,871.93 is: 47,806.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,022.99 : 136,530.23 = 31,871.93 : x
  2. Step 2: Convert to fraction form
    91,022.99/136,530.23 = 31,871.93/x
  3. Step 3: Cross multiply
    91,022.99x = 136,530.23 × 31,871.93
  4. Step 4: Simplify right side
    91,022.99x = 4,351,481,091.43
  5. Step 5: Solve for x
    x = 4,351,481,091.43/91,022.99
  6. Step 6: Final answer
    x = 47,806.40

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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.