Home / 74,001.40-111,010.20-71,668.60

Finding the Fourth Proportional to 74,001.40, 111,010.20 and 71,668.60

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Solution

The fourth proportional to 74,001.40, 111,010.20 and 71,668.60 is: 107,510.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,001.40 : 111,010.20 = 71,668.60 : x
  2. Step 2: Convert to fraction form
    74,001.40/111,010.20 = 71,668.60/x
  3. Step 3: Cross multiply
    74,001.40x = 111,010.20 × 71,668.60
  4. Step 4: Simplify right side
    74,001.40x = 7,955,945,619.72
  5. Step 5: Solve for x
    x = 7,955,945,619.72/74,001.40
  6. Step 6: Final answer
    x = 107,510.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.