Home / 79,345.14-109,477.62-71,993.58

Finding the Fourth Proportional to 79,345.14, 109,477.62 and 71,993.58

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Solution

The fourth proportional to 79,345.14, 109,477.62 and 71,993.58 is: 99,334.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,345.14 : 109,477.62 = 71,993.58 : x
  2. Step 2: Convert to fraction form
    79,345.14/109,477.62 = 71,993.58/x
  3. Step 3: Cross multiply
    79,345.14x = 109,477.62 × 71,993.58
  4. Step 4: Simplify right side
    79,345.14x = 7,881,685,793.68
  5. Step 5: Solve for x
    x = 7,881,685,793.68/79,345.14
  6. Step 6: Final answer
    x = 99,334.20

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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.