Home / 75,144.10-112,674.02-51,478.38

Finding the Fourth Proportional to 75,144.10, 112,674.02 and 51,478.38

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Solution

The fourth proportional to 75,144.10, 112,674.02 and 51,478.38 is: 77,188.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,144.10 : 112,674.02 = 51,478.38 : x
  2. Step 2: Convert to fraction form
    75,144.10/112,674.02 = 51,478.38/x
  3. Step 3: Cross multiply
    75,144.10x = 112,674.02 × 51,478.38
  4. Step 4: Simplify right side
    75,144.10x = 5,800,276,017.69
  5. Step 5: Solve for x
    x = 5,800,276,017.69/75,144.10
  6. Step 6: Final answer
    x = 77,188.71

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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.