Home / 83,438.51-125,193.60-55,368.36

Finding the Fourth Proportional to 83,438.51, 125,193.60 and 55,368.36

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Solution

The fourth proportional to 83,438.51, 125,193.60 and 55,368.36 is: 83,076.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,438.51 : 125,193.60 = 55,368.36 : x
  2. Step 2: Convert to fraction form
    83,438.51/125,193.60 = 55,368.36/x
  3. Step 3: Cross multiply
    83,438.51x = 125,193.60 × 55,368.36
  4. Step 4: Simplify right side
    83,438.51x = 6,931,764,991.60
  5. Step 5: Solve for x
    x = 6,931,764,991.60/83,438.51
  6. Step 6: Final answer
    x = 83,076.33

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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.