Home / 85,971.26-118,635.01-47,728.58

Finding the Fourth Proportional to 85,971.26, 118,635.01 and 47,728.58

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Solution

The fourth proportional to 85,971.26, 118,635.01 and 47,728.58 is: 65,862.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,971.26 : 118,635.01 = 47,728.58 : x
  2. Step 2: Convert to fraction form
    85,971.26/118,635.01 = 47,728.58/x
  3. Step 3: Cross multiply
    85,971.26x = 118,635.01 × 47,728.58
  4. Step 4: Simplify right side
    85,971.26x = 5,662,280,565.59
  5. Step 5: Solve for x
    x = 5,662,280,565.59/85,971.26
  6. Step 6: Final answer
    x = 65,862.48

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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.