Home / 71,716.13-98,970.99-39,887.33

Finding the Fourth Proportional to 71,716.13, 98,970.99 and 39,887.33

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Solution

The fourth proportional to 71,716.13, 98,970.99 and 39,887.33 is: 55,046.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,716.13 : 98,970.99 = 39,887.33 : x
  2. Step 2: Convert to fraction form
    71,716.13/98,970.99 = 39,887.33/x
  3. Step 3: Cross multiply
    71,716.13x = 98,970.99 × 39,887.33
  4. Step 4: Simplify right side
    71,716.13x = 3,947,688,538.56
  5. Step 5: Solve for x
    x = 3,947,688,538.56/71,716.13
  6. Step 6: Final answer
    x = 55,046.03

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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.