Home / 85,487.74-118,006.01-76,519.42

Finding the Fourth Proportional to 85,487.74, 118,006.01 and 76,519.42

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Solution

The fourth proportional to 85,487.74, 118,006.01 and 76,519.42 is: 105,626.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,487.74 : 118,006.01 = 76,519.42 : x
  2. Step 2: Convert to fraction form
    85,487.74/118,006.01 = 76,519.42/x
  3. Step 3: Cross multiply
    85,487.74x = 118,006.01 × 76,519.42
  4. Step 4: Simplify right side
    85,487.74x = 9,029,751,059.12
  5. Step 5: Solve for x
    x = 9,029,751,059.12/85,487.74
  6. Step 6: Final answer
    x = 105,626.27

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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.