Home / 85,717.08-118,291.14-47,991.24

Finding the Fourth Proportional to 85,717.08, 118,291.14 and 47,991.24

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Solution

The fourth proportional to 85,717.08, 118,291.14 and 47,991.24 is: 66,228.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,717.08 : 118,291.14 = 47,991.24 : x
  2. Step 2: Convert to fraction form
    85,717.08/118,291.14 = 47,991.24/x
  3. Step 3: Cross multiply
    85,717.08x = 118,291.14 × 47,991.24
  4. Step 4: Simplify right side
    85,717.08x = 5,676,938,489.61
  5. Step 5: Solve for x
    x = 5,676,938,489.61/85,717.08
  6. Step 6: Final answer
    x = 66,228.79

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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.