Home / 85,743.22-118,221.09-63,013

Finding the Fourth Proportional to 85,743.22, 118,221.09 and 63,013

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Solution

The fourth proportional to 85,743.22, 118,221.09 and 63,013 is: 86,881.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,743.22 : 118,221.09 = 63,013 : x
  2. Step 2: Convert to fraction form
    85,743.22/118,221.09 = 63,013/x
  3. Step 3: Cross multiply
    85,743.22x = 118,221.09 × 63,013
  4. Step 4: Simplify right side
    85,743.22x = 7,449,465,544.17
  5. Step 5: Solve for x
    x = 7,449,465,544.17/85,743.22
  6. Step 6: Final answer
    x = 86,881.10

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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.