Home / 71,421.06-98,558.22-39,154.98

Finding the Fourth Proportional to 71,421.06, 98,558.22 and 39,154.98

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Solution

The fourth proportional to 71,421.06, 98,558.22 and 39,154.98 is: 54,032.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,421.06 : 98,558.22 = 39,154.98 : x
  2. Step 2: Convert to fraction form
    71,421.06/98,558.22 = 39,154.98/x
  3. Step 3: Cross multiply
    71,421.06x = 98,558.22 × 39,154.98
  4. Step 4: Simplify right side
    71,421.06x = 3,859,045,132.94
  5. Step 5: Solve for x
    x = 3,859,045,132.94/71,421.06
  6. Step 6: Final answer
    x = 54,032.31

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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.