Home / 81,814.24-112,868.40-51,575.68

Finding the Fourth Proportional to 81,814.24, 112,868.40 and 51,575.68

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Solution

The fourth proportional to 81,814.24, 112,868.40 and 51,575.68 is: 71,152.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,814.24 : 112,868.40 = 51,575.68 : x
  2. Step 2: Convert to fraction form
    81,814.24/112,868.40 = 51,575.68/x
  3. Step 3: Cross multiply
    81,814.24x = 112,868.40 × 51,575.68
  4. Step 4: Simplify right side
    81,814.24x = 5,821,264,480.51
  5. Step 5: Solve for x
    x = 5,821,264,480.51/81,814.24
  6. Step 6: Final answer
    x = 71,152.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.