Home / 71,290.26-98,379.09-39,457.26

Finding the Fourth Proportional to 71,290.26, 98,379.09 and 39,457.26

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Solution

The fourth proportional to 71,290.26, 98,379.09 and 39,457.26 is: 54,450.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,290.26 : 98,379.09 = 39,457.26 : x
  2. Step 2: Convert to fraction form
    71,290.26/98,379.09 = 39,457.26/x
  3. Step 3: Cross multiply
    71,290.26x = 98,379.09 × 39,457.26
  4. Step 4: Simplify right side
    71,290.26x = 3,881,769,332.69
  5. Step 5: Solve for x
    x = 3,881,769,332.69/71,290.26
  6. Step 6: Final answer
    x = 54,450.21

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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.