Home / 66,187.44-91,337.04-37,890.72

Finding the Fourth Proportional to 66,187.44, 91,337.04 and 37,890.72

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Solution

The fourth proportional to 66,187.44, 91,337.04 and 37,890.72 is: 52,288.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,187.44 : 91,337.04 = 37,890.72 : x
  2. Step 2: Convert to fraction form
    66,187.44/91,337.04 = 37,890.72/x
  3. Step 3: Cross multiply
    66,187.44x = 91,337.04 × 37,890.72
  4. Step 4: Simplify right side
    66,187.44x = 3,460,826,208.27
  5. Step 5: Solve for x
    x = 3,460,826,208.27/66,187.44
  6. Step 6: Final answer
    x = 52,288.26

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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.