Home / 84,032.55-115,954.43-56,868.03

Finding the Fourth Proportional to 84,032.55, 115,954.43 and 56,868.03

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Solution

The fourth proportional to 84,032.55, 115,954.43 and 56,868.03 is: 78,470.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,032.55 : 115,954.43 = 56,868.03 : x
  2. Step 2: Convert to fraction form
    84,032.55/115,954.43 = 56,868.03/x
  3. Step 3: Cross multiply
    84,032.55x = 115,954.43 × 56,868.03
  4. Step 4: Simplify right side
    84,032.55x = 6,594,099,719.53
  5. Step 5: Solve for x
    x = 6,594,099,719.53/84,032.55
  6. Step 6: Final answer
    x = 78,470.78

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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.