Home / 85,473.38-118,008.96-76,505.60

Finding the Fourth Proportional to 85,473.38, 118,008.96 and 76,505.60

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Solution

The fourth proportional to 85,473.38, 118,008.96 and 76,505.60 is: 105,627.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,473.38 : 118,008.96 = 76,505.60 : x
  2. Step 2: Convert to fraction form
    85,473.38/118,008.96 = 76,505.60/x
  3. Step 3: Cross multiply
    85,473.38x = 118,008.96 × 76,505.60
  4. Step 4: Simplify right side
    85,473.38x = 9,028,346,290.18
  5. Step 5: Solve for x
    x = 9,028,346,290.18/85,473.38
  6. Step 6: Final answer
    x = 105,627.58

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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.