Home / 85,706.29-118,281.40-49,419.41

Finding the Fourth Proportional to 85,706.29, 118,281.40 and 49,419.41

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Solution

The fourth proportional to 85,706.29, 118,281.40 and 49,419.41 is: 68,202.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,706.29 : 118,281.40 = 49,419.41 : x
  2. Step 2: Convert to fraction form
    85,706.29/118,281.40 = 49,419.41/x
  3. Step 3: Cross multiply
    85,706.29x = 118,281.40 × 49,419.41
  4. Step 4: Simplify right side
    85,706.29x = 5,845,396,287.02
  5. Step 5: Solve for x
    x = 5,845,396,287.02/85,706.29
  6. Step 6: Final answer
    x = 68,202.65

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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.