Home / 71,509.12-98,682.27-39,677.94

Finding the Fourth Proportional to 71,509.12, 98,682.27 and 39,677.94

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Solution

The fourth proportional to 71,509.12, 98,682.27 and 39,677.94 is: 54,755.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,509.12 : 98,682.27 = 39,677.94 : x
  2. Step 2: Convert to fraction form
    71,509.12/98,682.27 = 39,677.94/x
  3. Step 3: Cross multiply
    71,509.12x = 98,682.27 × 39,677.94
  4. Step 4: Simplify right side
    71,509.12x = 3,915,509,039.33
  5. Step 5: Solve for x
    x = 3,915,509,039.33/71,509.12
  6. Step 6: Final answer
    x = 54,755.38

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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.