Home / 65,904.12-90,941.94-39,042.09

Finding the Fourth Proportional to 65,904.12, 90,941.94 and 39,042.09

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Solution

The fourth proportional to 65,904.12, 90,941.94 and 39,042.09 is: 53,874.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,904.12 : 90,941.94 = 39,042.09 : x
  2. Step 2: Convert to fraction form
    65,904.12/90,941.94 = 39,042.09/x
  3. Step 3: Cross multiply
    65,904.12x = 90,941.94 × 39,042.09
  4. Step 4: Simplify right side
    65,904.12x = 3,550,563,406.25
  5. Step 5: Solve for x
    x = 3,550,563,406.25/65,904.12
  6. Step 6: Final answer
    x = 53,874.68

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1.5x scale

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.