Home / 71,983.42-107,977.66-19,394.17

Finding the Fourth Proportional to 71,983.42, 107,977.66 and 19,394.17

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Solution

The fourth proportional to 71,983.42, 107,977.66 and 19,394.17 is: 29,091.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,983.42 : 107,977.66 = 19,394.17 : x
  2. Step 2: Convert to fraction form
    71,983.42/107,977.66 = 19,394.17/x
  3. Step 3: Cross multiply
    71,983.42x = 107,977.66 × 19,394.17
  4. Step 4: Simplify right side
    71,983.42x = 2,094,136,775.81
  5. Step 5: Solve for x
    x = 2,094,136,775.81/71,983.42
  6. Step 6: Final answer
    x = 29,091.93

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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.