Home / 71,675.20-98,914.31-39,412.27

Finding the Fourth Proportional to 71,675.20, 98,914.31 and 39,412.27

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Solution

The fourth proportional to 71,675.20, 98,914.31 and 39,412.27 is: 54,390.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,675.20 : 98,914.31 = 39,412.27 : x
  2. Step 2: Convert to fraction form
    71,675.20/98,914.31 = 39,412.27/x
  3. Step 3: Cross multiply
    71,675.20x = 98,914.31 × 39,412.27
  4. Step 4: Simplify right side
    71,675.20x = 3,898,437,566.96
  5. Step 5: Solve for x
    x = 3,898,437,566.96/71,675.20
  6. Step 6: Final answer
    x = 54,390.33

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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.