Home / 71,645.06-98,869.47-39,813.29

Finding the Fourth Proportional to 71,645.06, 98,869.47 and 39,813.29

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Solution

The fourth proportional to 71,645.06, 98,869.47 and 39,813.29 is: 54,941.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,645.06 : 98,869.47 = 39,813.29 : x
  2. Step 2: Convert to fraction form
    71,645.06/98,869.47 = 39,813.29/x
  3. Step 3: Cross multiply
    71,645.06x = 98,869.47 × 39,813.29
  4. Step 4: Simplify right side
    71,645.06x = 3,936,318,881.26
  5. Step 5: Solve for x
    x = 3,936,318,881.26/71,645.06
  6. Step 6: Final answer
    x = 54,941.94

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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.