Home / 71,660.38-98,887.08-39,828.19

Finding the Fourth Proportional to 71,660.38, 98,887.08 and 39,828.19

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Solution

The fourth proportional to 71,660.38, 98,887.08 and 39,828.19 is: 54,960.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,660.38 : 98,887.08 = 39,828.19 : x
  2. Step 2: Convert to fraction form
    71,660.38/98,887.08 = 39,828.19/x
  3. Step 3: Cross multiply
    71,660.38x = 98,887.08 × 39,828.19
  4. Step 4: Simplify right side
    71,660.38x = 3,938,493,410.79
  5. Step 5: Solve for x
    x = 3,938,493,410.79/71,660.38
  6. Step 6: Final answer
    x = 54,960.54

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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.