Home / 71,475.19-98,635.82-39,644.32

Finding the Fourth Proportional to 71,475.19, 98,635.82 and 39,644.32

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Solution

The fourth proportional to 71,475.19, 98,635.82 and 39,644.32 is: 54,709.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,475.19 : 98,635.82 = 39,644.32 : x
  2. Step 2: Convert to fraction form
    71,475.19/98,635.82 = 39,644.32/x
  3. Step 3: Cross multiply
    71,475.19x = 98,635.82 × 39,644.32
  4. Step 4: Simplify right side
    71,475.19x = 3,910,349,665.84
  5. Step 5: Solve for x
    x = 3,910,349,665.84/71,475.19
  6. Step 6: Final answer
    x = 54,709.19

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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.