Home / 75,215.10-103,798.18-41,221.33

Finding the Fourth Proportional to 75,215.10, 103,798.18 and 41,221.33

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Solution

The fourth proportional to 75,215.10, 103,798.18 and 41,221.33 is: 56,886.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,215.10 : 103,798.18 = 41,221.33 : x
  2. Step 2: Convert to fraction form
    75,215.10/103,798.18 = 41,221.33/x
  3. Step 3: Cross multiply
    75,215.10x = 103,798.18 × 41,221.33
  4. Step 4: Simplify right side
    75,215.10x = 4,278,699,031.18
  5. Step 5: Solve for x
    x = 4,278,699,031.18/75,215.10
  6. Step 6: Final answer
    x = 56,886.17

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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.