Home / 75,187.24-112,817.61-53,142.28

Finding the Fourth Proportional to 75,187.24, 112,817.61 and 53,142.28

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Solution

The fourth proportional to 75,187.24, 112,817.61 and 53,142.28 is: 79,739.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,187.24 : 112,817.61 = 53,142.28 : x
  2. Step 2: Convert to fraction form
    75,187.24/112,817.61 = 53,142.28/x
  3. Step 3: Cross multiply
    75,187.24x = 112,817.61 × 53,142.28
  4. Step 4: Simplify right side
    75,187.24x = 5,995,384,737.51
  5. Step 5: Solve for x
    x = 5,995,384,737.51/75,187.24
  6. Step 6: Final answer
    x = 79,739.39

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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.