Home / 85,868.15-118,556.81-53,651.92

Finding the Fourth Proportional to 85,868.15, 118,556.81 and 53,651.92

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Solution

The fourth proportional to 85,868.15, 118,556.81 and 53,651.92 is: 74,076.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,868.15 : 118,556.81 = 53,651.92 : x
  2. Step 2: Convert to fraction form
    85,868.15/118,556.81 = 53,651.92/x
  3. Step 3: Cross multiply
    85,868.15x = 118,556.81 × 53,651.92
  4. Step 4: Simplify right side
    85,868.15x = 6,360,799,920.92
  5. Step 5: Solve for x
    x = 6,360,799,920.92/85,868.15
  6. Step 6: Final answer
    x = 74,076.36

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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.