Home / 71,403.68-98,534.40-39,571.76

Finding the Fourth Proportional to 71,403.68, 98,534.40 and 39,571.76

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Solution

The fourth proportional to 71,403.68, 98,534.40 and 39,571.76 is: 54,607.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,403.68 : 98,534.40 = 39,571.76 : x
  2. Step 2: Convert to fraction form
    71,403.68/98,534.40 = 39,571.76/x
  3. Step 3: Cross multiply
    71,403.68x = 98,534.40 × 39,571.76
  4. Step 4: Simplify right side
    71,403.68x = 3,899,179,628.54
  5. Step 5: Solve for x
    x = 3,899,179,628.54/71,403.68
  6. Step 6: Final answer
    x = 54,607.54

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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.