Home / 91,281.68-136,922.50-37,972.65

Finding the Fourth Proportional to 91,281.68, 136,922.50 and 37,972.65

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Solution

The fourth proportional to 91,281.68, 136,922.50 and 37,972.65 is: 56,958.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,281.68 : 136,922.50 = 37,972.65 : x
  2. Step 2: Convert to fraction form
    91,281.68/136,922.50 = 37,972.65/x
  3. Step 3: Cross multiply
    91,281.68x = 136,922.50 × 37,972.65
  4. Step 4: Simplify right side
    91,281.68x = 5,199,309,960.36
  5. Step 5: Solve for x
    x = 5,199,309,960.36/91,281.68
  6. Step 6: Final answer
    x = 56,958.96

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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.