Home / 83,904.10-125,528.10-54,379.60

Finding the Fourth Proportional to 83,904.10, 125,528.10 and 54,379.60

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Solution

The fourth proportional to 83,904.10, 125,528.10 and 54,379.60 is: 81,356.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,904.10 : 125,528.10 = 54,379.60 : x
  2. Step 2: Convert to fraction form
    83,904.10/125,528.10 = 54,379.60/x
  3. Step 3: Cross multiply
    83,904.10x = 125,528.10 × 54,379.60
  4. Step 4: Simplify right side
    83,904.10x = 6,826,167,866.76
  5. Step 5: Solve for x
    x = 6,826,167,866.76/83,904.10
  6. Step 6: Final answer
    x = 81,356.79

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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.