Home / 71,899.49-99,225.62-39,634.05

Finding the Fourth Proportional to 71,899.49, 99,225.62 and 39,634.05

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Solution

The fourth proportional to 71,899.49, 99,225.62 and 39,634.05 is: 54,697.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,899.49 : 99,225.62 = 39,634.05 : x
  2. Step 2: Convert to fraction form
    71,899.49/99,225.62 = 39,634.05/x
  3. Step 3: Cross multiply
    71,899.49x = 99,225.62 × 39,634.05
  4. Step 4: Simplify right side
    71,899.49x = 3,932,712,986.19
  5. Step 5: Solve for x
    x = 3,932,712,986.19/71,899.49
  6. Step 6: Final answer
    x = 54,697.37

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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.