Home / 70,231.48-96,918.78-38,400.04

Finding the Fourth Proportional to 70,231.48, 96,918.78 and 38,400.04

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Solution

The fourth proportional to 70,231.48, 96,918.78 and 38,400.04 is: 52,991.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,231.48 : 96,918.78 = 38,400.04 : x
  2. Step 2: Convert to fraction form
    70,231.48/96,918.78 = 38,400.04/x
  3. Step 3: Cross multiply
    70,231.48x = 96,918.78 × 38,400.04
  4. Step 4: Simplify right side
    70,231.48x = 3,721,685,028.75
  5. Step 5: Solve for x
    x = 3,721,685,028.75/70,231.48
  6. Step 6: Final answer
    x = 52,991.69

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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.