Home / 75,257.72-103,619.22-63,903.32

Finding the Fourth Proportional to 75,257.72, 103,619.22 and 63,903.32

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Solution

The fourth proportional to 75,257.72, 103,619.22 and 63,903.32 is: 87,985.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,257.72 : 103,619.22 = 63,903.32 : x
  2. Step 2: Convert to fraction form
    75,257.72/103,619.22 = 63,903.32/x
  3. Step 3: Cross multiply
    75,257.72x = 103,619.22 × 63,903.32
  4. Step 4: Simplify right side
    75,257.72x = 6,621,612,173.81
  5. Step 5: Solve for x
    x = 6,621,612,173.81/75,257.72
  6. Step 6: Final answer
    x = 87,985.82

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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.