Home / 71,637.39-98,859.66-39,809.25

Finding the Fourth Proportional to 71,637.39, 98,859.66 and 39,809.25

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Solution

The fourth proportional to 71,637.39, 98,859.66 and 39,809.25 is: 54,936.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,637.39 : 98,859.66 = 39,809.25 : x
  2. Step 2: Convert to fraction form
    71,637.39/98,859.66 = 39,809.25/x
  3. Step 3: Cross multiply
    71,637.39x = 98,859.66 × 39,809.25
  4. Step 4: Simplify right side
    71,637.39x = 3,935,528,919.86
  5. Step 5: Solve for x
    x = 3,935,528,919.86/71,637.39
  6. Step 6: Final answer
    x = 54,936.80

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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.