Home / 65,208.11-89,987.56-38,351.75

Finding the Fourth Proportional to 65,208.11, 89,987.56 and 38,351.75

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Solution

The fourth proportional to 65,208.11, 89,987.56 and 38,351.75 is: 52,925.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,208.11 : 89,987.56 = 38,351.75 : x
  2. Step 2: Convert to fraction form
    65,208.11/89,987.56 = 38,351.75/x
  3. Step 3: Cross multiply
    65,208.11x = 89,987.56 × 38,351.75
  4. Step 4: Simplify right side
    65,208.11x = 3,451,179,858.41
  5. Step 5: Solve for x
    x = 3,451,179,858.41/65,208.11
  6. Step 6: Final answer
    x = 52,925.63

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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.