Home / 71,984.35-99,337.73-39,719.26

Finding the Fourth Proportional to 71,984.35, 99,337.73 and 39,719.26

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Solution

The fourth proportional to 71,984.35, 99,337.73 and 39,719.26 is: 54,812.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,984.35 : 99,337.73 = 39,719.26 : x
  2. Step 2: Convert to fraction form
    71,984.35/99,337.73 = 39,719.26/x
  3. Step 3: Cross multiply
    71,984.35x = 99,337.73 × 39,719.26
  4. Step 4: Simplify right side
    71,984.35x = 3,945,620,927.08
  5. Step 5: Solve for x
    x = 3,945,620,927.08/71,984.35
  6. Step 6: Final answer
    x = 54,812.20

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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.