Home / 75,137.10-112,663.53-51,471.38

Finding the Fourth Proportional to 75,137.10, 112,663.53 and 51,471.38

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Solution

The fourth proportional to 75,137.10, 112,663.53 and 51,471.38 is: 77,178.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,137.10 : 112,663.53 = 51,471.38 : x
  2. Step 2: Convert to fraction form
    75,137.10/112,663.53 = 51,471.38/x
  3. Step 3: Cross multiply
    75,137.10x = 112,663.53 × 51,471.38
  4. Step 4: Simplify right side
    75,137.10x = 5,798,946,801.45
  5. Step 5: Solve for x
    x = 5,798,946,801.45/75,137.10
  6. Step 6: Final answer
    x = 77,178.21

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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.