Home / 75,615.04-104,344.32-43,781.68

Finding the Fourth Proportional to 75,615.04, 104,344.32 and 43,781.68

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Solution

The fourth proportional to 75,615.04, 104,344.32 and 43,781.68 is: 60,416.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,615.04 : 104,344.32 = 43,781.68 : x
  2. Step 2: Convert to fraction form
    75,615.04/104,344.32 = 43,781.68/x
  3. Step 3: Cross multiply
    75,615.04x = 104,344.32 × 43,781.68
  4. Step 4: Simplify right side
    75,615.04x = 4,568,369,628.06
  5. Step 5: Solve for x
    x = 4,568,369,628.06/75,615.04
  6. Step 6: Final answer
    x = 60,416.15

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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.