Home / 85,742.22-118,219.71-63,012

Finding the Fourth Proportional to 85,742.22, 118,219.71 and 63,012

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Solution

The fourth proportional to 85,742.22, 118,219.71 and 63,012 is: 86,879.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,742.22 : 118,219.71 = 63,012 : x
  2. Step 2: Convert to fraction form
    85,742.22/118,219.71 = 63,012/x
  3. Step 3: Cross multiply
    85,742.22x = 118,219.71 × 63,012
  4. Step 4: Simplify right side
    85,742.22x = 7,449,260,366.52
  5. Step 5: Solve for x
    x = 7,449,260,366.52/85,742.22
  6. Step 6: Final answer
    x = 86,879.72

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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.