Home / 85,629.29-118,281.38-65,732.04

Finding the Fourth Proportional to 85,629.29, 118,281.38 and 65,732.04

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Solution

The fourth proportional to 85,629.29, 118,281.38 and 65,732.04 is: 90,796.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,629.29 : 118,281.38 = 65,732.04 : x
  2. Step 2: Convert to fraction form
    85,629.29/118,281.38 = 65,732.04/x
  3. Step 3: Cross multiply
    85,629.29x = 118,281.38 × 65,732.04
  4. Step 4: Simplify right side
    85,629.29x = 7,774,876,072.76
  5. Step 5: Solve for x
    x = 7,774,876,072.76/85,629.29
  6. Step 6: Final answer
    x = 90,796.93

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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.