Home / 75,781.71-104,501.34-50,279.13

Finding the Fourth Proportional to 75,781.71, 104,501.34 and 50,279.13

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Solution

The fourth proportional to 75,781.71, 104,501.34 and 50,279.13 is: 69,333.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,781.71 : 104,501.34 = 50,279.13 : x
  2. Step 2: Convert to fraction form
    75,781.71/104,501.34 = 50,279.13/x
  3. Step 3: Cross multiply
    75,781.71x = 104,501.34 × 50,279.13
  4. Step 4: Simplify right side
    75,781.71x = 5,254,236,459.03
  5. Step 5: Solve for x
    x = 5,254,236,459.03/75,781.71
  6. Step 6: Final answer
    x = 69,333.83

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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.