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Finding the Fourth Proportional to 75,039.63, 103,554.90 and 41,505.63

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Solution

The fourth proportional to 75,039.63, 103,554.90 and 41,505.63 is: 57,277.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,039.63 : 103,554.90 = 41,505.63 : x
  2. Step 2: Convert to fraction form
    75,039.63/103,554.90 = 41,505.63/x
  3. Step 3: Cross multiply
    75,039.63x = 103,554.90 × 41,505.63
  4. Step 4: Simplify right side
    75,039.63x = 4,298,111,364.09
  5. Step 5: Solve for x
    x = 4,298,111,364.09/75,039.63
  6. Step 6: Final answer
    x = 57,277.89

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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.