Home / 71,261.06-98,336.13-39,428.06

Finding the Fourth Proportional to 71,261.06, 98,336.13 and 39,428.06

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Solution

The fourth proportional to 71,261.06, 98,336.13 and 39,428.06 is: 54,408.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,261.06 : 98,336.13 = 39,428.06 : x
  2. Step 2: Convert to fraction form
    71,261.06/98,336.13 = 39,428.06/x
  3. Step 3: Cross multiply
    71,261.06x = 98,336.13 × 39,428.06
  4. Step 4: Simplify right side
    71,261.06x = 3,877,202,342.13
  5. Step 5: Solve for x
    x = 3,877,202,342.13/71,261.06
  6. Step 6: Final answer
    x = 54,408.43

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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.