Home / 75,143.10-112,672.42-51,477.33

Finding the Fourth Proportional to 75,143.10, 112,672.42 and 51,477.33

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Solution

The fourth proportional to 75,143.10, 112,672.42 and 51,477.33 is: 77,187.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,143.10 : 112,672.42 = 51,477.33 : x
  2. Step 2: Convert to fraction form
    75,143.10/112,672.42 = 51,477.33/x
  3. Step 3: Cross multiply
    75,143.10x = 112,672.42 × 51,477.33
  4. Step 4: Simplify right side
    75,143.10x = 5,800,075,346.24
  5. Step 5: Solve for x
    x = 5,800,075,346.24/75,143.10
  6. Step 6: Final answer
    x = 77,187.07

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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.