Home / 61,890.16-85,399.15-36,394.60

Finding the Fourth Proportional to 61,890.16, 85,399.15 and 36,394.60

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Solution

The fourth proportional to 61,890.16, 85,399.15 and 36,394.60 is: 50,219.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,890.16 : 85,399.15 = 36,394.60 : x
  2. Step 2: Convert to fraction form
    61,890.16/85,399.15 = 36,394.60/x
  3. Step 3: Cross multiply
    61,890.16x = 85,399.15 × 36,394.60
  4. Step 4: Simplify right side
    61,890.16x = 3,108,067,904.59
  5. Step 5: Solve for x
    x = 3,108,067,904.59/61,890.16
  6. Step 6: Final answer
    x = 50,219.10

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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.