Home / 71,823.06-99,115.86-39,994.92

Finding the Fourth Proportional to 71,823.06, 99,115.86 and 39,994.92

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Solution

The fourth proportional to 71,823.06, 99,115.86 and 39,994.92 is: 55,193.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,823.06 : 99,115.86 = 39,994.92 : x
  2. Step 2: Convert to fraction form
    71,823.06/99,115.86 = 39,994.92/x
  3. Step 3: Cross multiply
    71,823.06x = 99,115.86 × 39,994.92
  4. Step 4: Simplify right side
    71,823.06x = 3,964,130,891.43
  5. Step 5: Solve for x
    x = 3,964,130,891.43/71,823.06
  6. Step 6: Final answer
    x = 55,193.01

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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.