Home / 51,850.65-77,725.41-28,136.76

Finding the Fourth Proportional to 51,850.65, 77,725.41 and 28,136.76

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Solution

The fourth proportional to 51,850.65, 77,725.41 and 28,136.76 is: 42,177.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,850.65 : 77,725.41 = 28,136.76 : x
  2. Step 2: Convert to fraction form
    51,850.65/77,725.41 = 28,136.76/x
  3. Step 3: Cross multiply
    51,850.65x = 77,725.41 × 28,136.76
  4. Step 4: Simplify right side
    51,850.65x = 2,186,941,207.07
  5. Step 5: Solve for x
    x = 2,186,941,207.07/51,850.65
  6. Step 6: Final answer
    x = 42,177.70

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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.